replacing lower control arm

Fellers,

My wife smacked the curb pulling into her icy parking lot at work. The front driver's side rim has a good dent along the edge, and the lower control arm has a good little gash. A new one is $250 (lowest), i'll probably just get one from a salvage yard for about $100. is this hard to replace? Hopefully my local shop will let me bring my own part and have them swap it out since my business is swamped right now. Anyone have a driver's side rim they'd like to sell.

thanks

Tdog

Cincinnati, OH