Since you have CrMo pushrods, adjust the valves to zero clearance, all the way around. The pushrods should be able to spin pretty easily if you can get a finger on them. I can just squeeze my pinky past the pushrod retainer wire to do the spin test, and it is tough to tell if the rod is spinning or your finger is slipping because of oil. There should be no discernible play in the rocker arms though.
Starting with #1 TDC adjust both valves, rotate the crankshaft 180 degrees backwards, adjust cyl #2, rotate 180 deg, adjust cyl#3, rotate 180, adjust #4. I put the car in gear and chock one wheel so I can rotate the engine with the other wheel. Working alone it means I have to get up and down a few times, no big deal.
Piece of cake. You deserve a beer when you're done.