If I were in your place I would check with the local salvage yards. If not that then check out collision repair centers, etc., any place that purchases replacement body panels often, and ask their advice on obtaining the bumper, spoiler, etc. As for the wheels, you may want to check wheelcollsion.com. As far as making a replica, whatever works for you but I wouldn't really want to make my car into a replica b/c then I'd get embarrassed whenever any Volvo enthusiast takes a look at my car and discovers it's not the real thing.....But hey, I'm just a picky person. Would look nice on the street however...