You definitely have a third confirmed order here - it's been in his in-tray since 2012! Who else can be convinced to come on board?
UPDATE: I sent Mr Doherty an e-mail this morning to confirm it. He replied simply: "Noted."
As for parts to complete the Jeep:
- driving wheels are shared with the LMS Black 5, so it's Ultrascale or Alan Gibson Workshop (AGW).
- pony and bogie wheels are LMS/BR standard anyway
- Axles for 21mm gauge can be had from Ultrascale, or you could cut your own from 1/8" and 2mm steel rod.
- The Jeep's G8AS boiler is shared with the LMS Fowler 4P 2-6-4T, so some of the latter's fittings could be borrowed in the short term
- AGW does a fair few Midland/LMS fittings, some of which might pass for NCC
- Motor and drivetrain: down to individual preference. I only use coreless plus reversible drivetrains, so I accumulate old Portescap RG4s or - more recently - the Marklin one.