hi tommy, the subframe will need repairing, at a metal shop if you cant do it yourself, else it is a new frame im afraid, as they are all one part.the seat can be replaced by using an 85 86 or 87 seat bought second hand on ebay or ceet racing will sell you a new one.replacement plastics are available from maier manafacturing in the usa, just google search it and your laughing. as for the radiators, 3 of the 4 mounts on 86 rads are the same as the 87 on type.you can cut and flip the mount,(if your handy at welding ally?) or just use 3 mounts with blue loctite and keep an eye on them, which I will be doing.chinese pattern radiators are available on ebay, and seem to be ok if you want a new set,although the mounting holes may need a kiss from a circular file, or use kwak 87 on ones, either ebay or new from a dealer.if you have any other questions, just give me a yell,K.