Barkleymut,
I am assuming that you wrote the above questions for me.
The Walker dethatcher is made for the Walker deck mounting frame. It is real easy to put on and take off. 10 seconds and no tools, it just hooks on. If you were real good at fabricating, you may be able to figure out a way to mount it on a walkbehind or a Chopper but it may be difficult to do.
Yes I did buy my dethatcher from my Walker dealer and I paid $180.00 3 years ago.