(gonna post this in my thread as a 'lesson learned')
nope that's the only part!
careful getting that shaft back in the top of the oil pump.
if you are going to prime the oil pump before startup, i used a 8mm (i think) socket on an extension going into a drill.
NONE of the parts places has the right oil primer drill attachment. You can get the GM V6 V8 primer (one with the cap and sliding barrel on the shaft) you'll have to cut off the end and permanently attach (jb weld) a socket on the end.
if you want to try then, then use your oil pump drive you just removed to determine the exact length of your modded oil primer.
using the socket/extension, you are going to see that you can't get much oil to the lifters. Sometimes the oil will squirt into the holes but you wont get any pressure because you dont have the cap/barrel to contain the oil flow.
what i did with lifters, was before inserting them, i removed the clip and cap and disc and filled up with oil, had my thumb over the side hole, reassembled, and put lifter in the block.
if you have any sludging, i recommend cleaning out the lifters. when disassembling, make sure you are in an area where you can find the clip when it bounces off.... careful on the spring/ball bearing at the bottom of the cup. after it's clean, might want to use Throttle Body cleaner (use the straw) and push on the ball bearing a little, and give it a good blast.