1. Pretty much what McHaggis said. There'll be an initial repair time, then probably a small upkeep time, one day at the most. A vehicle that sees a lot of use would need more upkeep than a vehicle that rarely gets action, obviously.

2. The key can be expanded as large as it needs to be (but more likely I'll just make the content smaller, so we don't have a giant key covering the entire map), so that's fine. Speaking of which, both you and [@UltikanaRe] are accepted. What color do you want on the map, red?

3. No comment - McHaggis is handling the lore, for the most part :P