I supply them with the the frame, bearings and shafts already installed so you just have to supply your own motor with pulley and one pulley for the drive shaft.
http://i42.photobucket.com/albums/e3...t/IMG_0349.jpg
Mark the 4 holes to mount the motor and install a belt and away you go.
First one took me about 3 hours to weld and drill the 1/2" holes for the bearings. I have it down to about 1.5 hours now.
In Canada where I live, I would consider making them but shipping to the US would be far to expensive to justify it so I decided to just share the plans for those that wanted to build there own as I have had lots of requests lately since I first posted the idea a couple of weeks ago.