11/20/09: Ordered four inner tubes so we can install Nadine's “new” tires on the questionable wire wheels and make the car roll. Outlay: $114.85 with shipping.
11/23/09: Part of the wiring harness and the inner tubes arrived. No immediate plans to mess with them yet.
11/24/09: Further investigation is turning up more evidence that the bolt pattern under the spline drive adapters is, in fact, 4x4.5” just like a Datsun.