Value of an A-833 O.D?
I rebilt and sold an Iron case, Iron tail shaft to a member here.
Everything was fresh, bearings, syco's etc. it was like a new tranny never run for $800.
As far as the shift linkage.
If you have factory rods, all you have to do is lenghten the 3-4 rod in the thread area, and flip the attachment point.
If you do it right the rod will work on an od and non-od trans.
A used trans, worth about $200.00 if it is for an A body.
Truck trans, I would not pay $100.