-CEG classifieds
-ebay
-junkyard
-new from the dealership

Id say the least you could get away with buying the kit used is maybe $500 for everything but thats hard to come by. Chances are for that price though, some bodywork needs to be done because the pieces are slightly damaged, but fixable. Realistically, youll probably end up paying around $700 or so for used. If you buy it from the dealership, its about $700 for just the rear bumper. Then factor in the price of paint.

Jim Hahn 1996 T-Red Contour SE Reborn 4/6/04 3.0L swap and Arizona Dyno Chip Turbo Kit 364 whp, 410 wtq @ 4,700 rpm