Would make an awesome candidate for a top tube, suspended scooter or Morini engine....
With a scooter/GY6 engine, the CVT could wrap around the seat tube. Would have to jury rig a sprocket and the drive shaft would take some 'figuring. Then drive chain length... (some kind of "righting strut"?)
Be a really cool build. Has mounts on top too.
Dunno but looking forward to seeing what ya come up with Scotto.