I did just email Robin, and he proved to be as responsive as everyone has reported (one of the reasons I gravitated to his bicycles in the first place).
He reports that the EXP, Nomad, XTC, and all the Rohloff models except Tour, Sport Tour, Catalyst, and Enduro are made in the UK.
So I believe I am homing in on the Nomad as the perfect choice for me if I am to order a frame to build up myself. The Rohloff calls, though . . .