Howdy! Congrats on your camper! I love how a classic FWC still looks so good, and that side window is awesome!
I am also new to the camper life, I’ll share a little of my experience and choices.
I had airbags installed at the same time as the camper, I have a Raven that comes in at 1300 lbs. The airbags have pros and cons that are well documented, good for adjusting to your prefer ride height, but I feel they are a bit bouncy and I’m not sure they’ll be my solution long term.
My truck had SL tires, and had to be inflated to max PSI when the camper went on. My plan was to run those tires until they were done, however, after putting some miles on them, taking a couple of trips, and doing some research I determined that it was worth it to me to move to E rated tires ASAP. I just did a weekend road trip that was close to 600 miles that included heavy rain, lots of mountain and canyon driving, rugged forest roads etc, and let me tell you … The investment in the E rated tires was worth EVERY PENNY. The truck handled so much better in all of those conditions, the feeling of body roll and squishyness was reduced significantly, and led to a much more comfortable and confident drive. I felt so much better on the forest roads which were quite rocky, just knowing I had a stronger tire. The tires are the only thing that I have done post camper install, and I would highly recommend doing that when and if you are able.
I believe the truck will benefit from some additional upgrades for more control and less sway, at some point I intend to make some additional suspension upgrades that I think will lead to a more controlled ride and driving experience.
Congrats again, and happy camping!