Chrysler 8 1/4

The OP has a "23" body, but on my 73 Duster "29" body, the easiest and cheapest was an 8 3/4 67 B body axle. It literally dropped in and actually made the car look better as it put the rear wheels in the same track as the fronts.

Shortening the drive shaft was about $40 (I'm sure it's a bit more now) and the axle was all of $50 (I've seen them recently for $100-$150 complete- non SG).

I know 23 bodies are quite a bit more restrictive in the wheel well area, but at $100 it might be worth a try. I'm sure you could get your $100 back if it ended up that the wheels rubbed and you couldn't find wheels that didn't.