I clamp the unit into my workmate type protable sawhorse. The motor mount is the permanent one to be used with the motor and is mounted to the 3/4" pine. Everything is glued and screwed. The tank sits behind in foam and I usually drill small holes in the wood to hold the throttle pushrod end which is bent at a 90 degree angle at various settings. The strip at the back helps the back end from dropping down though once clamped in, it doesn't budge. The engine in the sawhorse is a magnum .70 and on the the bean bag is a magnum .52

The can is my homemade muffler I made from an old RCM article.. works real well and quites things down quite a bit so I can run the motors in the neighborhood. has an exit exhaust behind the input which can't be seen