Logistics

[Mokkurkalfe]

Could anybody come up with some good numbers on how much upkeep would cost in tRoS, including lodging, food, equipment maintenance and whatnot?
And perhaps some end-of-the-week/month cost, like armor repair.
Usually I won't bother to keep check of food, and stuff, but with a simple table(say, draw 1 Silver/day under X circumstances) these things would be infinitely easier. Then one could include the possibility of disease if sleeping in the open and other things that takes too much time right now.
Or, in other words, what would you have to include in the typical adventure party's budget? Now I'm referring to all those things you don't roleplay.