Any 75-79 B body gurus out there?

I had joined fbbo in search of some help with interchangability on these cars, and it must be a much smaller community than fabo, and/or this body style is just wildly forgotten.

I have since started the transformation of my 77 monaco 2 door into a 75 roadrunner. (Kinda) lol. I have hung the new header panel on it, but im not going as far as to swap tail lights, or make it oe correct or anything. I honestly just like the single headlight much better than the dual quads.

So anyways I have started several threads over there about just utilizing the parts I like from these cars to assemble this forgotten B body using the parts I feel are the best looking from this body style, considering 90 percent of the world is going to think its a first gen monte Carlo anyways. Lol

So unanswered questions....that I have bumped numerous times over there with little or no reply.

Can the door panels be interchanged from a magnum or cordoba? They are much Better looking than my monaco ones...

My other debacle is the quarter windows. I have found at least 4 completely different quarter window variations with these cars. Problem being that MY quarter windows appear to Only have came with the half Landau top. Problem for me considering I am missing some vinyl top trim, and I'd much much rather run a hard top.

Please let me know any insight on the windows or door panels.

Thanks all for reading my post!