So that's clear is it Wingnut?
QUOTE (alastairq)people, and lorries are hard to adapt to other scales.....locos, stock and track can cross-dress anytime.
This is an excellent point, perhaps you should think about the other aspects of your layout such as scenery, operational scope and vehicles etc. and deduce the most suitable gauge from that.
Welcome to the forum by the way, and good luck with the scratchbuilding which I think can be challenging but very rewarding if one perseveres.

QUOTE (alastairq)people, and lorries are hard to adapt to other scales.....locos, stock and track can cross-dress anytime.
This is an excellent point, perhaps you should think about the other aspects of your layout such as scenery, operational scope and vehicles etc. and deduce the most suitable gauge from that.
Welcome to the forum by the way, and good luck with the scratchbuilding which I think can be challenging but very rewarding if one perseveres.