My buddy works at an International Truck Service shop, he would probably have access to the HPO leakdown tester right?
So this is the list so far, omitted is the HPOP combo kit from Injector Warehouse, and because the Ford OEM Part is $1,027.36 retail... and because I haven't decided if I need to change it. but I have listed the STC and IPR. These are just part numbers and for reference, to see if I have everything to do this job as I don't have time to do this job twice.
STC - 4C3Z-9B246-F (Updated STC fitting kit)
IPR - 5C3Z-9C968-CA / International Part # - 1846057C1
Dummy Plugs - W302938 x2
Stand Pipes - 6E72-9A332-A x2
Updated Turbo Oil Feed Line - International Part # - 1845287C96
Updated Turbo Oil Drain Line - International Part # - 1876071C91
Blue Spring Kit - 3C3Z-9T517-AE / 6E72-9C165-B (First part number is with the housing, second one is without)
6.4L Banjo Bolt Kit - W303659
Exhaust/Turbo Inlet Bolts and Gaskets - Haven't found part number yet.
EGR Seals (because I might as well since I'm there....) - 3C3Z-9P455-AB
International Part # - 1840778C92
This is pretty much where I'm at so far, I put the International numbers there so that I may as well try and get the parts cheaper through my buddy and I figure if someone else for whatever reason is looking for these numbers.