After having spent a necessary interval of time ignoring N scale (and attempting to sell the modules with little success), I've decided that if I'm not getting my initial investment back in cash (to spend on 2-rail O) I might as well enjoy what I've got.
The modules, I've already cut off all the original nickel-silver catenary, and will be rearranging how all the switches are laid out, before reinstalling new phosphor-bronze catenary.
The rolling stock, I'm already deep into the process of installing body-mount couplers and FVM wheels on the undamaged stuff; and sorting the remainder into several piles: Fix, Parts, Trash, and Missing.
For addressing a few things in the Fix pile, does anyone have spare atlas CR/PC B23-7 or SD35 shells?
--Drew