Good luck with the tow, looks like a great camper.
I just got back to Florida from New Jersey where we picked up our new 23' travel trailer. I'd say I took most of my usual stuff for camping.
Most of my tools fit into two Harbor Freight black cloth toolbags, one medium, one small. I like the cloth bags because they don't weigh much, have handles and are easy to transport around.
The medium bag is my "hitch kit" and has what I need to hitch up. Besides things like small orange sports / soccer disks to mark my line to back into an RV spot, I put hitch spares and so forth. Also box end wrenches and sockets sized for the specific nuts/bolts on my Equal-i-zer hitch. I also carry a 1/2" click-type torque wrench.
The small bag has most of my small working tools; Picquic driver, small cordless driver, Wera screwdrivers, Gedore cutter, Rivet gun, small VOM, etc.
In a square tote in the truck I also carry a Ryobi cordless drill, a Ryobi cordless power inflator, and another cordless 1/2" impact wrench with a 21mm soft sided socket for wheel changes. Plus a kneeling pad and 5 lb fire extinguisher.
Glovebox has a small SAK I've had like forever, and a AAA headlight. Roll of paper towels, Detail spray, Aerospace 303 and Sprayway Glass cleaner / MF towels are in the left rear passenger door pocket if I need to use at a fuel stop or whatever.