Any fusalage from vario to fit a Raptor
You should be able to use quite a few of the Vario fuselages for your Raptor. I have a friend who used X-cell 60 mechanics in a medium Airwolf. On Vario USA's website when you select a particular fuselage it will show you the length and suggested rotor span for the fuselage. I would think anything the size of the medium Airwolf would work.
IMPORTANT NOTE!!! All of the Vario fuselages come with specific woodwork designed to fit their mechanics. Be prepared to have to modify that woodwork or make your own.
I'm sure if you e-mailed them they would be able to give you some suggestions.
Good Luck!
Tim