Poor planning for winter crafts

Over the past year I took up painting minis. I am actually pretty happy with how my recent painting projects have turned out. Living in Calgary, I have found that most of my rpg playing happens during the cold, dark winter months. I have also been thinking that winter would be a good time to get some mini painting done. However, the daytime temperatures here are already barely 5 degrees celsius. I have been priming my minis with spray primers but they all require a temp higher than what we will see here in Calgary for many months. I had planned to have primed a bunch of minis to prep for the winter but suffice it to say that this didn't happen. What do other mini painters in the great white north do for priming their minis during the winter? I have a garage but it isn't heated and doesn't get warm enough and I don't want to spray primer in the house. Is there a brush on primer that is good?

Minis

This is a recent email I sent to my players:

Hey guys,
At the end of last session we discussed the use of minis and a battlegrid. I am not a huge fan of using minis with 2nd edition and earlier D&D - I actually think the combat mechanics work better without them - but I am fine with using them if everyone else wants to. The important thing to remember if we are using a battlegrid and minis is the placement of your mini on the map is not the exact location of your character relative to everything else.

Why is this?
1. The duration of a combat round is 1 minute. It is completely unfeasible for a character to stand in one 5x5 area in a combat situation with horrible abominations trying to kill him for a whole minute.
2. The combat system in 2E and earlier D&D is abstract in that a d20 roll to hit is not the only swing of his sword. It is the culmination of a full minute of intense action involving many swings, parries, feints, wrestling, pushing, dodging, etc. Think of how much action happens in a "Bourne" combat scene during one minute. The number of d20 rolls you get during a melee round is an indication of your ability to have one or more of these many, many actions cause you to gain an advantage and/or your enemy to become disadvantaged. This leads into the actual meaning of "hit points" but that is a whole other discussion. It is because of all of these actions that happen in a 1 minute combat round that means you can't think of your character being in one stationary place on a battlegrid.

So while the minis and battlegrid will show very approximate locations it is best to view groups of minis in a whirl of constant motion in a larger general area instead of a mini in a set 5x5 square.

What does this mean?
1. There are two "states" in combat - "In Melee" and "Not In Melee" - one of the things that the minis and battlegrid will show you is who is in melee against how many opponents and, in a very approximate way, where this melee is happening relative to those "Not In Melee". The "In Melee" state has two positions "Front Rank" and if you have a long weapon (such as a spear) "Second Rank". If you have a long weapon you have to tell me if you are in the second rank - if not I will just assume you are in the front rank. Second Rank allows you to attack from behind your fellow party members, reducing the number of opponents that can attack you.
2. Firing missiles (arrows, thrown hand axes, etc) into melee will still be done as per the DMG - there is the random potential to hit anyone engaged in that melee.
3. The rules for Flanking and Rear attacks will still be done as per the core rules - ie the first 3 opponents are assumed to be to your front, the 4th to your shield flank, the 5th to your other flank, and the 6th to your rear (not including any special situations like a thief hiding in shadows and his sneak attack). So just because your mini shows that you are behind someone doesn't make it so unless you specify that you are in the Second Rank. However, I will allow the thief to sneak attack someone without any hiding or moving silently if he is the 6th opponent to attack that target which the core rules do not allow.
4. To steal a term from 3rd edition D&D - anyone in a melee is "Threatened" by all of the other opponents in that melee. Just because there are 2 squares and another mini between you and the Ogre does not mean that he doesn't get a free attack if you decide to flee (unless you say you are in the second rank).
5. Movement is inexact. For example, if there are two melees happening at opposite ends of a large room and your character decides to leave one melee to go help at the other melee - you can't just count the squares to find out how far you can move. Where you are actually located in the melee you just left is abstract. If it looks like you might be able to make it to the other melee we will roll some dice to see if you make it there.
6. With abstract positioning and movement, knowing where the PCs are in a melee for an area of effect spell will also be abstract. If you are in a large room fighting orcs and the magic-user casts a Fireball into an area that includes a portion of the "In Melee" area, your PC might get caught in the blast. We will handle this by rolling some dice and seeing where your PC actually is.
7. Narrative description is far more important than where the mini is located. I am far more likely to give bonuses for narrative descriptions than mini placement. Telling me that your character "hangs back at the edge of the combat attacking whenever the opportunity presents itself" means more than having your mini at the edge of the melee. In the narrative example, I can rule that you have a minus to attack but also limit the number of opponents that may swing back, give you a bonus to check if you are in the Fireball area of effect, etc. Telling me you jump off a table, bringing your axe down on top of your opponents head may get you a bonus to damage from the momentum. Most of the time I will do a 2-for-1 bonus for penalty - such as a +2 bonus to damage for a -1 penalty to AC in the example of jumping off the table.

What do you think? Any questions/comments?