How much do you think it would cost to fix a set of wheels, one wheel has curb rash about 1/3 of the way around, and I beleive the other three have cracks on the inside of the rim. How much would this be to repair? and how good wil the wheels be after repair, i.e. will they ride like they were damaged?

 

It's hard to answer any of your questions without inspecting the damage. It could be from $100 up to $200 per wheel depending on the damage. My advise would be to take it to a wheel repair shop and let them give you an estimate.