On repairs:
I rarely worry about the armorer's skill, I can think of others I'd rather develop. Those hammers are heavy to carry around and frankly, I've rarely been in a situation where I've really needed to do on the spot repairs. Besides.. as far as cost goes, it's not that expensive and accumulating cash in the game is hardly a challenge..
@Joe,
you don't have to worry about fighting your way through that mine. All you need to do is enter it and then step back out.. Bero only wants to know the location, he doesn't require you to clean out the beasties
What I would suggest though.. once you have the necessary items, create a constant effect bound bow on a belt or ring or something. It's basically weightless and you only have to re-equip it, rather than worrying about repairs.