No worries, gents-
I have a friend of mine that has been properly bribed with fresh swordfish, tuna, rock cod, and lingcod and has thus agreed to make the needed two (plus one spare, I hope) delrin adapters for me.... Finally work meets the hobby again in my life, yay.
So I will just need 3, (4 if possible, to have one spare) of the TD normal 80tpi collars from you Fred, and I will buy the venturies separately. Let me know what I can give you for them. I have some RC swag, that you could be interested in. Miniature Berg 7ch 72Mhz rx's? Servos, lots of variety? Other stuff as well.
The great thing is that I just got some bare intake manifolds for the OS.26 4c I wanted to convert, and it looks like the ID is smaller than the #3 drill size that the 1/4"-32 tap requires, so all I have to do is squarely cut that intake at the head side of the carb barrel, and tap it to fit the TD venturi. Then just screw the venturi in, (no adapter required, a beautiful thing!) and I will be all set for a U/C setup on the OS.26.
R,
Target