So my recent dickering around with the blue goo has produced flexible master molds I can use to make copies of the shapes modeled. The Peugeot / Tomos / Polini reed side draft intake mold isn't quite perfect yet, but I decided to have a go anyway using candlewax -which is part of the problem. The potpourri fragrances, however, are an aromatherapy solution. Sooner or later, I'll man up to some microcyrstalline wax for some super serious molding. I'll also switch up to a Urethane-based master mold, which is tougher for repeat usage, and has better rigidity qualities for accuracy.
I also copied Naz's MHR scooter cylinder, though reproducing this will be slightly more involved. The master here, is of just the internal port structure and port layout. It would need to be adjusted for the specific stroke and crown heights to go into another motor, I would also have to construct a mold of the exterior... so yes, we're still aways off yet. But! We are getting closer to a nightmarish post-apocalyptic world where 20hp Jawa 207's and Batavus HS-50's rule the streets with an iron fist and the Gilardoni Peugeots, Hobbits, Derbis rock back and forth in the corner crying. Keep the dream alive, buddy! Don't stop believin'.