Update:
I spent some time cleaning the used engine up, then getting it ready to replace top end gaskets. Looked like the front main seal was leaking, so I replaced it, and am debating a new oil pump seal kit because I can’t tell if it was leaking too. Not sure where to source that, any tips would be appreciated. I ended up with a mix of oem and Fel-Pro gaskets for everything else, and am grateful for all the advice I’ve found digging through these threads. Sourcing the recommended parts has been pretty easy- In addition to the gasket set, I have new plugs, wires, cap, and rotor, a new fuel filter, and an auxiliary wiring harness for future accessories. Now that I’m thinking about it, I should probably look over all the hoses and clamps and get replacements for any iffy ones ordered. The only real trouble I have run into came in the form of an exhaust bolt broken off in a cylinder head, but I used an ez-out and freed it without doing any damage. Aside from that little side quest, everything has come apart, cleaned up, and has gone back together nicely so far.
I’ll make valve rail spacers in the morning so I can torque the heads on, then get the intake manifold and carb back on tomorrow after work. Hopefully I can get the rest of the out-of-the-car assembly done and my get harness wired up this weekend. That leaves next week to clean & prep the engine bay and bolt the motor back in it. So maybe two more weekends and my little GL will be whole again, then another couple weeks hooking up wires/hoses and getting it running right, and dinking around with any little basics it needs to drive around town for shakedown.
I think I’m at the stage now where the list starts getting shorter, so that’s nice...