So my buddy built this back when we doing our welding engineering degree at ferris state for his fabrication project. Super nice frame jig. set up for big twin harleys but the motor/trans plate "towers" are removable so you could set any frame in it you wanted. He spent a TON of time making this, all parts are laser cut and jig built on an acorn fabrication table system. Very nice set up, fully adjustable: up/out stretch, rake, axle plate width.
I'll try any remember to snap a picture or two next time i'm in the garage.