Don't mean to hijack this thread, but on the subject of the 215ci engine trans issue, the Olds trans has terrible gearing, shift is awful, and is pretty unreliable to boot. Probably, as you say, it would hold up in a 'T', no problem though. The Buick trans was a 2 speed with a terrible reputation for slipping and breaking, but again, as you point out, it would probably work out OK in a 'T'. The thing about the Jayco's I mentioned is that they are an OD trans, with pretty decent gearing, and good reliability. They are also pretty rugged in a small form factor, but then the Buick two speed is also small. (The Olds 3 speed is more the size of a turbo 350...) Just thinking outside the box a bit...
The one I have is a '63 Olds 215, that was running and driving when pulled about 20 years ago. Chances that the trans would work asis are pretty slim, and rebuilders don't seem to want to work on these, at least not judging by the prices quoted for a rebuild. In my case I guess it's all academic anyway, since I'm pretty settled on a Chevy 90 degree V6, and a powerglide that is sitting in the other corner, but the Aluminum Olds nags at me... I was going to use a Jag XJ6 engine/automatic, but decied it is just too heavy. Good grief, I can hardly even lift the starter for the thing! It's a beauty though...
Welding the Super Trick wheel: I considerred this, and then putting it in the lathe to give a skinning in that area to bring back the apearance. They are REALLY thin and light weight though... RE tire size, my front wheels are 3.5" wide, and on a reread I see yours are 4" wide, so the 165s probably look better on yours...