I've found an engine, so now I'll start listing parts I need
-power steering pump dipstick (found)
-motor mounts. IIRC, Duramax and 8.1L share frame side mount in trucks.
-engine dipstick tube. Dipstick I have seems OK, but the tube rusted through. Some places show 6.0 and 8.1L use the same tube. True?
-SUV 8.1l radiator and mounts.
-Fan shroud?
-Power steering pump reservoir (found)