I've built this small engine for a harbor freight terminal layout that I've made. It is not a real locomotive replica. I admit that I am closer to the playability side and I prefer the works which keep more of a toy atmosphere :)
This shunter was built on a 14 X 6 studs base and has enough space for the cables, I.R. receiver and the minifig. The access to the battery box is easy from the upper side and the communication between R.C. and I.R. receiver is perfect.
More pictures could be seen here: https://www.flickr.c...157663795962040
LEGO R.C. Shunter 1 by Severus A, on Flickr
LEGO R.C. Shunter 2 by Severus A, on Flickr
LEGO R.C. Shunter 3 by Severus A, on Flickr
LEGO R.C. Shunter 4 by Severus A, on Flickr