I ordered parts this morning from Cruiser Outfitters. I went with the Marlin seals and the Timkin wheel bearings. Bryce, the guy at Cruiser Outfitters, confirmed the 60's don't have problem with the Marlin seals. It's an issue that apparently only occurs with the 80's.
$160 for the rebuild kit with the bearings. $18 for the Marlin seals.
On another note, I fired it up the other day and after it had idled for awhile, I noticed a bit of white smoke from beneath the hood. It seemed to be coming from near the exhaust manifold and smelled more like coolant than oil. Couldn't figure out the source. I'll look more closely...
Oh the joys of a new, completely unfamiliar vehicle!