4 Speed with B/E tailshaft help

I made my own.... No machine shop needed. I used 1/4" (or 3/8", I forget) steel plate and used a torch to heat the plate to bend it to make my offset dimensions. Drilled the holes to mount it to the tranny and the drilled and tapped the other holes to mount the shifter. It isn't perfect but it does work. The web site you mention also has a template to use for the hole dimensions. No magic required :)