Sounds like a plan, do you have a lathe large enough to swing the centers?

I'd skip the flaps, they are/were to protect the tube from being pinched or worn by the inside of the rim, and if you rim is all clean, one piece, and smooth then no point in having the flaps.

Grigg

•1951 GMC 250 in the Project Journals
•1948 Chevrolet 6400 - Detroit Diesel 4-53T - Roadranger 10 speed overdrive - 4 wheel disc brakes
•1952 Chevrolet 3800 pickup
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"First, get a clear notion of what you desire to accomplish, and then in all probability you will succeed in doing it..." -Henry Maudslay-