Mike,
You and your brother ruminate?
Ouch! Bad joke dealing with a cows' digestive system!
I've chewed my cud, as well as maybe a little crow also.
Obviously the sedan and coupe bodies won't interchange because of body style, and shape of roll cage. But as far as coupe to coupe, sedan to sedan; couldn't one just add some braces for the bodywork? I will have to look over the rules. Right off the top of my head, I don't recall seeing anything about this subject.
Pegalis (Shaun),
Don't go pickin' on us '40 Ford Coupe guys!
Now I feel like an orphan!
Steve