Its all about organization.
We Have driven to Florida the last 3 years ( 4000 Miles round trip)  I have got three Equal size suitcases that perfectly from side to side behind the rear seat. One for me, One for my wife, and one for my kids. Pack what you really need. We have a little cooler that fits behind the center console that holds a 12 pack of pop. The few other things I need to bring like camera cases ECT fit under the seats. Allong with my tools.
Mike
Goddamn.......man........that is a trip. in your rig? Not to be funny but is your AC factory or 2/40?
Wow......this I gotta see.........co workers tracker is jam packed with hunting stuff, 105 lb yellow lab, chest waders, 4 or more shotguns, beer, ammo, food for us and the ****** dog. PLus decoys and game bags.
Once we came back we had to strap the birds to the roof as they were within reach of his rather powerful jaws. That's why I got the 4 door so I could fold the seats flat, get the dog cage in there, lay the guns down instead of having them poke us in the ass, plus chest waders. Its still tight, but more livable that way. And I got better AC than he does so during dove season, we can sweat it big time in the field but cool off in my hamster.
Wow............all the way to FL and back in your 2 door. And I though I had a monster trip from PA down there in my 4 door. You got big ones mike, big ones.