Just to give a up-date, I hope to have my version of this pot done in 2 weeks, I am waiting on the heat band.
This unit will be very nice, no short cuts were taken.
All wiring will be in a UL rated box, plus I am using a correct speed controlled motor.
Del mentioned you could build one of these for $500, well I hope no one attempts it unless your good at dumpster raids, LOL