This is stripped down version of the PBR Q129 available in my shop with buffers,brake line and brake wheels removed.
Brass buffers,etched brass wheels and brass brake wire can be used instead.
Also SEM 9mm 88 Wheelsets and HO scale couplers are needed to complete the model.
SEM J Class Tender Bogies can be also be used in place of the 3d printed bogies.
The decal sheet and the brake wiring diagram for this model can be downloaded below: