Well... we need to know what year truck this is, and what is already done.
I'm doing my 06 real soon, he's a short list I threw together yesterday.... My list may vary since I will be using the 18mm heads on my 06 which more than likely has 20mm heads on it currently. I'm doing this because I have a spare set of 18mm heads available for me to use, so it's less down time on the truck and less time tying up the lift. I will throw the 18mm on as soon as my 20mm come off and I'm ready for reassembly.
OEM headgaskets (18mm) 4C3Z-6051-EB
Exhaust manifold gaskets 6C3Z-9448-A
Kit for Dummyplug's and Stand pipes 6E7Z-9A332-B
updated STC fitting 4C3Z-9B246-F
20mm to 18mm dowel kit 6C3Z-6B041-B
Restore (1 gal)
oil cooler rebuild kit 3C3Z-6A642-CA (just the simple rebuild kit, not the whole deal)
3C3Z-6A642-BB (this is the PN for the entire kit, housing, cooler)
HPOP screen (oil cooler kit comes with this)
IPR screen
Upgrade turbo oil supply line 3C3Z-9T516-A
I've already got the ARP's and the ultra torque assembly lube.