Son of a biscuit-eater! After the pre-Christmas tidy-up, can I find the parts for the "problem" class loco?!?

Meanwhile I put some "Quik steel" in the tender chassis of "Lion", thinking to mount a tension-lock coupling, but it was too low, so I went back to the old idea of a bar across the buffers. So far, not so bad... but then there was a mystery short-circuit. It took ages to trace it: the screws holding the chassis together were coming out and touching the backs of the driving wheels... They've been fixed back in with superglue, so I hope I never need to change the motor... and Lion is a runner again: though frankly I find the wheels need constant cleaning. Oh well...