version now discontinued replacement here
https://www.shapeways.com/product/7F7VA2FJE/b-87-j94-austerity-loco
This is my first standard gauge loco. Done specifically for HO scale as few British models in this scale. It is also suitable for French HO as at least 2 operated in French insustry.
Chassis wizse this version should fit a Bachmann OO gauge BR 03 diesel shunter chassis. This is the new Bachmann one not the old Mainline one. Some slight mods might be required to body. The chassis sits back to frot, and couling rod extensions will need removing. Otherwise it looks like it fits OK.