'PX48: 001 comprises the smokebox and running plate, complete with lamps. To complete the major items of the body kit you will also need PX48 002 (boiler and cab) and PX48 003 (tender). The model is designed to be powered by a Graham Farish 8F chassis for the loco, and liliput bogies for the tender.
For further details, and a builders guide, please see my website www.glr3dmodeldesign.co.uk
Many thanks for looking, if you've any questions, please ask.