67 Steering Column - Help

I started to say earlier, I'm not sure you need to replace that shaft. The bottom bearing does not need to be that "precision". In fact I'm not sure why you need them

Some other thoughts. In regard to the thread posted about fixing the lower bearing, consider turning the shaft barely enough to get it round and true, then devise a clamshell shim to make up the diametrical difference. Clamp that into something like a taperlock pillow block ball bearing. Or maybe custom make a bushing carrier for the outer sleeve and move it up the shaft onto "unworn" area.

There is likely LOTS of ways to skin this cat, as Crackedback says