Found TDC using a dial indicator, and #1 is sitting .077 down @ TDC. I couldn't quite figure out how to find BDC accurately.
Also installed the checking springs and used the checking rod to determine my pushrod length using rumblefish's method (install checking rod and extend it until the lifter is depressed .050. I found that length to be 7.125. The stock rods I was running with the stock setup were 7.5. I put one in with clay on the piston just to see what would happen, and I don't think I got 1/4 turn before the valve bottomed out.
I'll be shopping for some 7.125 pushrods.