So after my first ride in the truck I concluded that the subframe mounts I was using allowed way to much movement. I think the problem was that the weight of the camper caused them to compress one side all the way and leave the other side without any preload. This cause the camper to sway and wobble quite a bit. To fix this I added some spacers between the camper cross members and the truck frame as well as a hard mount right behind the cab. I drove the truck quite a bit today and found this setup MUCH better. It drives pretty stinking good for what it is. You can feel the weight of the camper in corners etc, but it doesn't sway anymore and just drives down the road. I still have a tire balance issue in the front sometimes. I have 10oz of balance beads in them and may try some more.
I also worked on getting the battery isolator setup. I'm using the $50 method outlined elsewhere on expedition portal. I bought some 1 gauge 25' jumper cables, solenoid, circuit breakers, and quick disconnects off amazon. The 25' length is perfect for making it from the battery, down the frame rail and to the back of the truck. From there I'll have a quick disconnect that will normally run to the camper, but could switch to a removable winch or jumper cables if needed. These are the cables I used:
https://www.amazon.com/gp/product/B06XPTWBDH/ref=oh_aui_detailpage_o01_s00?ie=UTF8&psc=1
Spent the afternoon driving around picking up odds and ends to finish things up. Got the last couple trim pieces, shore power pigtail, etc. Feels good to be driving it around to get used to it. So far so good.