Cass(DocDiff) is your best source for info and parts.
Housing ends $75 or so
Setup kit. $120 or so
Axles c/ bearings $300 (35 spline)
MW jig. $500 or shops will shorten for $250 or so.

Watch that gear set also, some truck stuff has odd course spline pinions making yoke availability challenging. To bad yah didn't live closer you could use my jig.

Best of luck



68' Barracuda (4 speed) 64' Savoy (4 speed) 65' Satellite (girl tranny)