I just finished my rotisserie last week using Vid's Specifications and construction procedure. It turned out very nice. Thanks very much for posting these instructions here. I ended up using two stock 1.5" x 1.5" - 24 inch long 14 gauge steel angles from Lowes for my mouting brackets. The 24" long angles accommodate a full wide body playfield without having to cut them cutting. See pictures. I didn't have plastic dip (where do you get that stuff? spray it on or do you have to dip in a trough?) I deburred the angles with a file and then I used heavy dark gray 3M duct tape from Autozone (not the cheap stuff from lowes) to line the angles for now.
Chet