I have been looking around for a little while for a FWD car shell to put on the chassis. Here's what I've done with it. rattle can paintjob, all colours are painted including window frames. Under the headlight/tail light stickers the "glass" is painted too in the correct trnaslucent amber/red.

Thomas, I made an inquiry and it looks as though Lunsford makes 90mm titanium turnbuckles. Ask your local hobby shop if they can get it for you or try the web.