My brother just had the 9" rebuilt in his 220K mile F-150. He's in central Alaska, so it sees rough duty. All stock-ish parts, was a little over $2000 including axles. There was an 8 week wait for a slot in the shop though. Great aftermarket support for the 9".
My buddy has had a Torsen in the Dana 60 in his 440 4spd Barracuda since the late '80s. His was made by Gleason for a Ford application, so he had custom axles made due to different splines. Full time limited slip and smooth as glass, he's loved it since day one. Admittedly a low miles, fair weather car, he'll beat on it pretty hard though.