Welp, since I can't PM yet, let's do this in the open, since I'm probably not the only one with this type of question and probably needs to be educated as to how wrong some of my ideas are.
Here is a rough - I haven't quite gotten far enough to plot it to cad, this is just a scale mockup done in inkscape. It lacks tuner, electronics, etc. placements.
http://www.electricmulch.com/Images/HordeGuitar2.png
The intent is a full scale bass, using PBass style passive pickups, single tone/volume pair and a side-mounted jack.
I have no real opinions about material other than wanting to lean as light as possible and not having a need for a pretty grain since it will be pretty heavily painted. I assume a pocketed neck would be best?
I expect some experimenting will be necessary to sort out where best to put the strap locks.
So. Vaguely feasible?
What would be needed to sort out how difficult it would be to get cut? ( I expect there are more questions I didn't answer, etc. Part of why I thought me a good educational experience to share. )