I fired it up Sunday - let it run for 30 seconds. Instant 60+psi of oil pressure, and I couldn't believe how quiet it was with all the exhaust leaks fixed and a quiet valve train. It's way too cold to heat cycle it in the barn at the moment, so that'll wait until all the maintenance is done.
Yesterday I changed the ball joints, the idler arm, and the pitman arm. I've still got to install inner/outer tie rod ends, sway bar bushing/endlinks, and then service the transmission and differentials since I'm sure it hasn't been done ever.