I built this one from materials I had on hand. Red oak and Brazilian Walnut (Ipé), and 3/16" aluminum for the engine clamps. Some 1/4-20 bolts clamp the engine down. Handles whatever size engine I can stick on it. I've had .29 up to .90's on mine.

I used a couple spare servo horns, a few drywall screws, 4-40 threaded rods, and a strip of 3/32" aluminum for a throttle linkage. The fuel tank platform can be raised or lowered.

Took me about an hour to cut all the pieces and another day or so to put a few coats of finish on it. The only engine I cant run on it is my small frame Fox .40. The drop down muffler hits the engine clamp.