Thanks for the insight re: the value of the scrap frame.
Switching to a new frame due to drawbacks in the old frame isn’t unusual. Many Rohloff owners switch from a non-Rohloff-ready frame like the Surly LHT/Disc Trucker to a Rohloff-ready frame like the Nomad so that they can get rid of the awkward compatibility attachments (chain tensioner, torque arm). In that case, one can still build up another, derailleur-based bike with the old frame, but I just don’t see any place for a leftover Nomad Mk2 frame in my stable, nor do I think I could easily sell it in my local market.
But especially as one wanting to start running a belt drive, purchasing the Mk3 frame which has everything I want and is warrantied, feels like a better option than turning to a local shop to make multiple alterations to the Mk2 frame. I’d also like to run Thorn’s new bikepacking fork, which will not fit the Mk2 Nomad.