Truth be told, I would be satisfied with a Lisa chassis. Even a totally dead Lisa with all the boards fried beyond any hope of salvage could do what I want it to do. If we even had an empty shell, we could build a pretty convincing Lisa replica based around a Pi or something like it, and that would almost certainly fulfill the role I'd envisioned for one as a public display item.
As large-format 3D printing gets better and cheaper, I figure we'll look that direction at some point. Or, as I keep joking, we'll find one around here somewhere out of the blue. One never knows what's out there just waiting to be discovered!