The trailer you want does not exist. That is, you're not going to find one with a queen bed, large fridge
, and enough tank space for a week that's under 3500Lbs loaded. The 19' Escape
is probably the closest (it's what I got, with similar-ish criteria), but the tanks are smaller than you'd want and it's well over on weight
I'm assuming by "Jeep" you mean Wrangler, and 3500Lb max towing capacity fully loaded? That drops your target max dry weight
down to more like 2200lbs, which basically only leaves pretty small trailers. One set up for serious offroading may lower the safe max even further.
You'd probably have better luck either compromising a bit on the off-roading and going with something like a Grand Cherokee or even a pickup truck, or switching to a class A or large class C and towing the Wrangler behind it instead.
I had some overlapping criteria when I did my shopping and ended up with an Escape 19. It has an optional 6 cubic foot fridge and a full queen bed with a relatively decent mattress (although we added a foam pad). I'm 6'2" and can stand up inside except under the air conditioner. Escape is fairly open to customization, but not to the point of floor plan changes. The tank sizes fall
short of your 7-day boondocking
goals (I think you'd need more like 50 gallons of freshwater for that), and at 3100Lbs dry it's going to be well over 3500Lbs loaded.
Keep in mind, a lot of fiberglass trailers rely on cabinets as essentially structural members to give the outside walls rigidity, so floorplan changes can be a bit more complicated.
I'd consider switching to a larger tow vehicle and looking at the 21' and 25' Bigfoot
trailers, or you'll be compromising heavily on the bed/fridge/boondocking requirements.