Shop time last night produced some good results. I pulled the pan and removed the broken dipstick tube, replaced with a good used one I had in my stash. Then set to buttoning things back up, cleaning, and taping. I was able to get the block and heads, engine/tranny mounts all painted, and cleaned up the PS/Alt bracket and water pump to spray black.
I installed the new LS6 valley cover with built in PCV and sealed up the knock sensor wiring harness.
I need to spend some time buttoning up the rear brakes, brake lines, and fuel lines so I can set the engine/trans back on the frame and move on to the cab.