I had to get this one on back order and she wasn't cheap either...
Seriously though I found an old tire in the back of a barn and old rope in the machine shop next door. Then I proceeded to tie a knot, put the rope around my body, and take off running. It works well, a little too well.
Right now I'm using it for GPP and I'm getting ready to throw cinder blocks in the middle and take off. Hope this helps,
Nate