Is there a way to take an existing aircraft, and remake the VC? I would like to try my hand at remaking a VC, but I don't even know if this is possible. And if anyone is interested in my progress, don't be, it will probably be years before I can figure out what to do, and I'll probably give up after ten or fifteen minutes anyway. I was just curious, thanks.
With FSX, I dare say that answer may be a qualified "yes".
Since FS-X now allows for separate exterior and interior models, *technically* (because I haven't checked it out for myself) you may be able to create a new VC completely independent of the exterior model.
Caveats:
I do not know if you can take an existing FS9 model with VC and identify a separate independent VC in FS-X. Will FS-X choke at "seeing" two VCs?
But there is a way, to do it with FS9 models, too, Ivan Hsu, the maker of MDLC, posted a short summary once, was more than a full written paper, so it seems to be hard, but possible !