Re: New truck!
Welcome to the nation. The truck looks good.
I think you have a great list of mods. If you do the mods you mentioned you will have a good reliable towing machine. Only thing I might add is a set of stage 1 injectors and probably e fuel but those things can be done later.
6.0 or 7.3 intercooler will both work. Try and get a set of 7.3 intercooler pipes and the obvious e99 spyder. Then you will just need some boots and clamps. I like riff raff for those.
Old Blue, 97' F350, CCLB, 7.3, Auto
Air: SD IC, 3" Plenums
Fuel: E- Fuel, 160/30 Injectors
Turbo: Irate T4, S366
Oil: T500, Melling LPOP
PCM: TW TS, IDM Mod