I want to purchase the Atlas track cleaning car.It has rapido couplers so I have various options for coupling it with a locomotive having Accumate or MTL couplers: 1) Replace the track cleaning car couplers with truck ( 1129 ) or body ( 1015 ) mounted MTL couplers. 2) Get a freight car with rapido couplers ( Walthers ballast hopper for example ) and converting 1 end with a MTL 1129 truck mounted coupler. Going that way, I'll have to buy the couplers, the MTL N-scale coupler starter kit with the jig etc... plus the freight car. At my age ( 58 ) I don't feel like assembling those knuckles, springs , gearboxes and other tiny parts. Another option , and maybe the best in my case , would be to get a locomotive equiped with rapido couplers and using it exclusively for track cleaning. So, could anyone recommend a cheap locomotive equiped with rapido couplers ? tia for any suggestion.