Bringatrailer.com is legit, I helped a friend sell her one-owner DeLorean for over $80,000 last year on it. Far exceeded her expectations (and even mine). The transaction went through no worries. The car went overseas.
Only problem with BaT is they don't accept all submissions for auction. They do seem to accept pretty much any DeLorean as far as I can tell. I haven't seen a project DeLorean (disassembled) like what you describe on there before so it would be interesting if they accept it.
Post up as many pics as possible on here and we can give you a good idea of what to expect.
Andy