I last bought a bottle of Dope about 10 years ago from a rare hobby shop I found in a suburb of Minneapolis that still catered to the do-it yourself hobbiest that builds and flys model airplanes from balsa wood. I find that most hobby shops now are nothing more than glorified Craft and toy Stores.
I believe the shop is still there if any of you live in the area – it is King Kong Hobbies in Coon Rapids, MN, just off HWY 10 and Foley Blvd near the big movie theater complex.
I agree the plastic float is the way to go, but they aren’t available for a lot of the old stuff we work on.
Dave