now there's a build I would like to see!! Have you done any of the research as to the two frames fitting together? Is it a "straight" graft with some flat plate or is it an offset situation?
I know of a few people who have done the frame graft, I guess certain 1st gen frames are taller than others but I know some of them are the exact height of the second gen frames so they just butt them up and weld em.