I've been mulling over the idea of a different kitbash to replace the L1 kitbash (should Hornby announce it!) but utilising the same N class chassis I had planned on using for the L1.

Utilising the spare N class tender I have decided to make a Q class from a GA kit I will be ordering in the new year - the intention is for that model to take up permanent residence on a friends layout, Coldhorten, in 2010.

Having looked through sean's K1 thread on the old RMweb, seen here, that I had a thought about using the N class chassis for a K1 build. The valve gear is correct, but the overall chassis spacing is incorrect (although in 4mm scale it comes out to roughly a few mm in either direction at the rear end). What else would need changing? The motion bracket and the cylinders, slightly different to Sean's in that respect.

Then I remembered Thompson made a K1/1, and - well...

I'm thinking it over and checking the measurements before making a final decision. I'd still have to find a Thompson B1 body and a tender from somewhere...