Well I finally got everything pulled apart last night. I drained the oil and at first thought, maybe it's not too bad. I pulled the passenger side head and it looks pretty gross and like it's not a problem that developed recently. If this thing had 77K miles on it then it was rough. Each stud into the block looks rusted and with the block still in the car there's more rust than I'd hoped pooled up at the bottom. What I thought might be a top end job looks like it'll be at least a rehone before cleaning up and piecing back together. At that point I may as well replace the bearings and rings too.
Finally someone had cross threaded the spark plug in the passenger front cylinder (1 right). I haven't looked too close, but what are my options to fix that? Rethread for a slightly larger plug or is repair of the thread possible? That's not like the most exciting thing if it means I need a new head.