You are happy with your rig and have used it several times. What concerns do you have? What advice are you asking for?
It seems that weight is the issue. If so, I can add that my TC is supposed to be 2300 lbs empty and setup for travel it weighs in well over 4000 lbs. I take extended trips and carry backup foods, a generator, 2 solar panels, 2 heavy AGM batteries and 3 seasons of clothing. Your use seems very different and you are likely not too much over the specs for your truck. I would check on ratings for your tires. Those are probably limiting you to roughly 3000 lbs per tire. You might be able to upgrade to improve the safety margin.
