This is Awesome! I'm looking to do the same thing. I have an 04 wrangler so same 2000lb towing capacity as your JK. I was planning on a 5x8 build but after seeing yours wondering if the 5x10 with the extra room would be better. There will be 3 of us as well. Wife and a 10 year old. I was concerned about weight and the fact that my TJ is lifted 4inches on 33s. I'm on a budget and I want something that we can get in out of the weather and sleep off the ground. I also wanted an AC solution which you've figured out. I think I'm going to start with a stock trailer just to save $$ for now and not try to take it anywhere to crazy yet. I'm not sure what kind of stock axles they come with but I think you said yours has a 3500lb...that would be the min I'd want I think. Any other advice anyone would have for pulling this with a TJ?