I bent my LCA a while back too in the snow when I hit a curb. I could tell the piece was bent a little, but I had no idea how bad it was until I took it all apart and compared the new piece to the old one. Not only did the arm bend, the bushing housing was now ovular. I basically crushed the thing.

The whole assembly is two pieces - I replaced on of them becasue the other didn't look damaged and I found out that it was so I ended up taking the whole thing apart again and fixing it.

It's not overly difficult to do yourself, but it's going to require some knowledge, and tools that you may or may not have. I wouldn't attempt this on a jack stand - find a lift. You have to remove the rim, rotor, ABS sensor, etc. Before you even get to the LCA. Then you need to get an alignment.

One warning - there is a welded nut inside of the subframe that the LCA bolts to. Do not knock this off becasue it's damn near impossible to get that nut back on.

If I hadn't done it myself, it would have been $1,000+ not counting fixing the scratched rim.

Hope this helps a little - if you need anything else, let me know.