You really seem to know your stuff, and this is a beautiful rig, but I just wanted to chime in on the lift pump comment:
We've had great success with the Air Dog lift pumps, I've installed one in 3 different Cummins applications, one of which was a 2004 Fummins F250 with a 2013 Cummins in it. All 3 saw huge performance from it. Both 'stock' installs saw significant fuel mileage increases and massive performance increases while towing. One of the 3 trucks hauls a 10-place horse trailer and they said they've never seen the mileage they got post-install while towing the trailer. They're not a small investment, but then again, none of this is.
They have great external filtering, and HUGE supply lines. Not at all afilliated, but after 3 successful installs, I'm a pretty big fan.
http://www.pureflowairdog.com/
* Just noticed your comment about it getting a FASS set up. Looks fairly comparible. No personal experience with them, but I can't see them being any different. Will leave my post for posterity.