Great choice of projects Skip, I'm subscribed! As much as I like the big Super Tigers, I would definitely go with the G-38 if it all fits in the cowl nicely. The reliability of the gassers, as well as the fuel economy, makes it an easy choice for me. As for the glass parts, I'm pretty sure they are all still available from Dave (although for how long nobody knows). I think I'd just purchase a spare set of parts from Dave before I'd go to all the trouble of molding my own. One other bit of advice, paint up the Platt pilot and use him for a nice paper weight but don't stick him in your airplane! Good luck with your build. Oh, and just in case you're counting votes, mine would be for the Hamp.