Just the fuselage?

Depends really, chuck it on Ebay if you want to find out, depends on who is shopping at the moment.

I've seen full kits go for 1100+ dollars and myself, paid 300 plus shipping for an untouched kit.

It would be a nice project to electrify but with the integrated mechanics wouldn't really be a drop in, it would take a lot of work. On the plus side its an extremely accurate rendition as Bell used them for wind tunnel testing.