The Great Western Railway designed the 1361 Class as a short wheelbase dock tank. Five examples were produced and worked at docks and harbours in the South West of England from 1910 until 1961/62. One example is preserved at the Great Western Society, Didcot.

Prototype photos can be found on flickr: https://flickr.com/photos/187103899@N08/galleries/72157720495030484/

This model is a GWR 1361 Class body-shell for the N Drive Productions' Very Short Wheelbase 0-6-0 "Steam" Chassis with 7mm 10-spoked wheels. (https://ndriveproductions.com)

The areas of the N-Drive chassis marked in RED in the sketch attached should be carefully removed. The body shell is a tight fit, so additional material might need removing from the ends of chassis.

No provision for couplings has been made, but NEM pockets from suppliers such as Dapol can be attached below the buffer beams.