David,

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KB scale Lister has a ready milled brass chassis. In effect a 'better' made version of the Nonneminstre O&K. The KB Lister will JUST take a 1015 can motor rather than the open frame one that comes with the kit. JUST means you have to file some off one of the plastic ends. I burnt out the original motor or I wouldn't have bothered. The Lister is still very slow and being lighter than the O&K appreciates clean wheels and track. The footplate etc is castings. I assembled all the parts on a mica block, held them in place with map pins, soaked it in flux, cut bits of 188 solder and placed them and ran the solder with a gas torch. Trying to solder castings together one at a time invites an earlier joint to melt. If I did another I'd seriously consider Araldite Precision and cure it somewhere warm.

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Because it is light haulage is limited, but having driven a real one pushing a short bogie open coach up hill and round a curve, possibly better than the prototype!

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I think you will have to solder the engine cover, but you should get away with Araldite for everything else.

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Black Beetles run a bit better than Tenshodo but aren't always a direct replacement.

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Frank