I hope it's not a Jinty - I already have three of them running round my TT layout! Yes, they are all Triang, and the wrong scale for the Hornby stock, but they run fine. Plus (and I'm an LMS fan) a 3F is not the most interesting prototype. Far better to choose one of the many pre-grouping 0-6-0Ts which lasted long into BR days. Gives more choice of liveries!