Thanks for the kind comments on my build.
A few more notes;
I did try running it without a resistor, I'm sure it'll be fine if driven gently. However my 009 stock gets borrowed occasionally and I'm not always sure what controllers are being used. Also, having tested the Kato circuit board, with my test bench controller (H&M Clipper) full on at 13 volts the motor output is only 3.7 volts off load. Hence a 470ohm resistor to protect the motor, I'm certain you can't get spare motors for these things!
I dont know how many Listers were supplied with canopies,they seem fairly common though. I just fancied building one of each really. Also it gives somewhere else to hide a bit more lead, every little helps......
As for re-gauging the wheelsets for a Wickham railcar, I think it's best left alone. The only posssible route I can think of would involve sacrificing a pair of chassis' , mounting them side by side and dispensing with the inner sets of wheels and gear chains. Does that make sense? Does a Wickham really need two motors? Don't know what minimum gauge you could achive by this method though. The Portram wheelbase is 12mm though, and the Wickham is about 14.5mm, not that the wheels would show. A Nigel Lawton chassis could be re-gauged, although there would be some motor intrusion above footplate level, although this would be largely hidden by the seats. I've got a one of these Wickhams lurking somewhere, must have a look at it again....