I forgot about DOS cycles. While their website doesn't have anything that catches my fancy, I will make sure to keep an eye out as they aren't that expensive. I am not against buying any of the options, I'd prefer an already complete solution.
Though making something from scratch would allow me to modify it any way I see fit. Parts would be more readily available, assuming I use a newer engine.
Looking at the Motocompo, I always thought the plastic didn't provide any support on the handles. (edited)