Mine are a little curbed but they were like that when I got 'em. I can guarantee I never curbed them. They're far from perfect though (may be *slightly* bent) but they still look great when clean. I'd probably only look to get like $200 for them.
Well you said you modified your coilovers right? Perhaps something's up there? I had a bad suspension rattle for a while and it turned out to be a loose bolt at the top of the suspension.