Finished January 2012:
Here's where it all started:
Mercedes vintage body by Jairus will be arriving soon.
Motor is a vintage Classic 26D endbell drive built by John Havlicek.
Bracket is a rare inline Cobra 26D. BBs are modern Pro Slot PS-420.
Wheels will be Electric Dreams .700" wide set screw with modern donuts.
BB holders (I call them "duffies") are custom built by Duffy.
My first experience with duffies, I am here to tell you, was fantastic.
The stock axle hole in the Cobra was 5/32".
The inner race of the duffy is .250" OD
I used a "step drill bit" to open the Cobra hole up to 1/4".
No drill press, no special tools, just a power drill and a lot of courage and prayer.
It worked perfect. The step bit does not grap and twist like a regular drill bit (Thanks Jay Guard !!) Now, the duffies fit with just barely enough wiggle room to align it all on the jig and allow some solder to flow.
The BBs fit absolutely PERFECTLY in the duffies... just enough room left to allow some solder or some Loctite.