I think I'd challenge myself to really get to know the new truck before doing anything under the hood. Every truck is its own and I assure you that Gen14 is a new animal beyond just the massaged sheet metal.
Drive it. Read about it. Look it over inside out and under. It will all just come to ya and make sense what needs addressing first.
This is the best answer so far, in my opinion.
Drive the truck for a while, get some miles on it, make sure nothing comes up. "Things" can happen with these trucks/engines completely stock as we all know and unfortunately it won't matter how mild of a tune you have if those issues come up and they find out about it that could be a big $$$ problem.
I kind of grumble to myself every time I see someone say "don't worry about it I had no problem getting warranty work done when I was tuned" that's all fine and dandy but I can 100% guarantee they are not gonna be there with their wallet out if and when the you know what goes down.
It's so cliché but it is true, you have to plan on the possibility of paying if you want to be playing