Yes, the wiring can be done with body on frame. You really need to be a *master* of Lotus positions before starting though. I have a ez wiring harness on the shelf. Took it out of the box, unrolled it. Got scared, put it back in box. Wired in a 12 circuit box. When I finished, wish I had went ahead with the harness. would have been less of a headache in the long run.
I do like that frame!