I have a question about a 4x4 setup. New to 4x4s

[Hazieview]

Hey guys I have found a truck I want to buy. I have no clue a bout 4x4s so I was wondering if this setup would be good for my application.

I will be driving at least 1000 miles round trip in this truck at highway speeds. Once I get to my destination I will need the 4 wheel drive to cruise through steep hills and mild terrain at speed lower than 30mph.

The truck will have..
-sb400 (500+ lbs of torque)
-700r4 (overdrive) wired with a "Painless wiring" tranmission kit to run without the electronic controls
-205 Transfer Case
-Dana 44 Front Axle w/disk brakes
-14BFF (14 bolt full floater) with DIY Disk Brake Conversion & Detroit locker.
-4:10 gears
-37" Goodyear MTRs on Allied Racing Beadlock Wheels
-Superlift 4" lift, all new shocks, dual steering stabilizer

What do you guys think? Is this a good setup or do you see something way wrong here?

Thanks guys! Rookie Alert!