N Gauge 1830s Planet Loco Scratch Aid

This is an N Gauge model of the 1830s Liverpool & Manchester Railway locomotive Planet, a replica now existing at the Manchester Museum of Science and Industry.  Combined with the Planet Tender (separately available), this scratch aid enables an unpowered free-rolling model engine.  Coupled to the motorised Liverpool and Manchester Railway coach or motorised flatbed (each separately available, plus free-rolling coaches and trucks), a fully working 'Era 1' N Gauge train can be created.

Necessary to Complete:
Graham Farish Jinty driving wheels (available as spares); 10.5mm diameter including flange, 1.5mm axle  NB only using one set of wheels, it has been designed to use the geared axle left over from the Coppernob model separately available.
Graham Farish wagon wheels (x1)
Couplings (the method used is at the builder's discretion)
Weight (the boiler is hollow)
(NB small strips of styrene will hold the driving wheels in place)

Optional additional details to scratchbuild (at the builder's discretion):
Safety valve (drill points marked)
Regulator
Axlebox tie-bars
Crew

I hope you enjoy this unusual and eye-catching model.