Broomsticks and an old treadmill sounds intresting ,post some drawings or directions,not what i really had in mind . I want a box for my trailer and dont want to spend more than 100 bucks . Thats where "repurposeing." an old truck box came from . Msc has 1/5 hp reduction motors for around 60.00 ,then repurpose some pipe or tubeing ,youll need 3 bearings the forth is the end of the reduction motor which gets bushed to your pipe size , buy cheap insert ball bearings to fit your tubeing ,space them appropriatly and do some improviseing .if it doesnt work pull off what you dont want to throw in the nearest dumpster an call whoever and buy one ,other wise im going to give it a shot with a little trial and error ,basice mechanical skills and minor luck im hopping to put that 400 into new rights .basic no insulation or heat but my thought is get it rollin ,add tray and heat . Insulstion can go on he outside a simple removeable tray for thebottom holds rolling prep. Close the lid an theres a seat .