Do any of you knowledgable chaps know if body panels for R129 SL's are interchangable between the models? SL320, SL500 & SL600 for example? The reason i am asking is an old fella down my local has an R129 SL500 and had a little bump in it a short while ago. I have done a little reasurch and there are some panels locally that are the same colour as his however they are on an SL600 and an SL320... the parts he is looking for are a bonnet and N/S front wing. Any help would be much appreciated.