This whole situation sounds very simulationist and if your not playing a high simulation game then I'd omit it.
I don't think it's any more simulationist than requireing a move action to pull a sword from it's scabbard, or a GM figuring how long it takes a character to pull his shield off his back and use it in combat.
I'm still thinking a Move action to string the bow. That way, the bow can be strung and fired in the same six second round--all the character gives up his is movement.
(The rules address readying a shield is a Move action, too.)
Does the soldier take his armor off after wearing it for some many hours, with the help of 2-3 people?
Yes. That's in the rules (in the d20 D&D rules, too, I'm pretty sure).
Do they have to sharpen weapons?
There's a special rule in Conan, that if they do sharpen their blades, and make a check, they can get a +1 to Critical Threat Range on their first attack. So, most of my players do make this check during their downtime.
Do they have to unpack and dry their gear on a regular basis? Do they bath/groom, and is there time and resources involved? If so, add it and make them micromanage ever moment of theirs character's lives, or if not, then just play and tell a great story.
Our stories are pretty addictive, but yeah, players will buy new clothes, pay for a bath or indicate that they're having one, from time to time--when it's appropriate.
We do tend to skip going to the bathroom.
While I'm personally not a huge fan of keeping track of inexpensive components, it's come in handy before. Like when my 1st-level wizard (and the rest of the party) got arrested, and his spellbook and components taken away, and I found enough colored sand to cast Color Spray.
I've had some fantastic times with spell components. I remember a mage needed iron slivers for a spell once, and he ended up taking filings from the rusted hinges on the dungeon doors!
I gave him extra XP for creative thinking!
(Not being familiar with d20 Conan, could you tell us a bit about it? Is it d20 Conan?)
Yes, published by Mongoose. It's 3.5 d20 based. Many of the same rules. Some rules are quite different.
ANYBODY INTERESTED IN THE CONAN RPG SHOULD CHECK OUT THIS THREAD: CLICKY, CLICKY.