Aha, all will be revelled in time FrankenWashie, but if you refer back to the ‘hollow body piezo ‘ thread under ‘modifications ‘ it will give it away.
All good points Simon and thanks for taking the time to think about potential problems.
1) I’ve got an acoustic tsuq nut which I could fiddle with, or a bone nut - pre filed- but that’s a joke because there is hardly an indentation in it...perhaps it could serve as string spacing and file deeper and wider.
2) Yes, I’ll first try medium tension, go to high tension if required.
3) Floating roller bridge -a) to assist string spacing positions which I’m concerned about if I were to use a regular curved bridge. b) I guess I am more likely to bend nylon strings and we know the benefit of roller bridges under those conditions.
4) Piezo unit under strings on a tailpiece.