There was a Tecumseh setup like that a couple of years ago at the Florida Flywheelers engine and tractor show/swap. I kept trying to find the owner to see if I could buy it but I think they maybe had a pulling tractor and were running that on the other side of the grounds. It looked like it was setup as a training device maybe, it had windows in the case on both sides as well, would have been neat to have! Had like a quick change for the glass.
Maybe it will show up at the upcoming january or February events