HNTucker wrote:
Jeeps Max payload is 2030
Fresh water And grey tank on the little guy- 5 gallons
Fresh water And gray on the big guy- 17 gallons
No black water tank
About the water, with my last TT (2011 KZ Escape) I had a supposed 11 gallon fresh tank. But it would never empty the last gallon or so because the outlet was on the side of the tank a couple inches from the bottom. I was traveling alone and using the water for flushing the toilet and washing dishes (I had separate drinking water, a gallon jug in the fridge). That fresh tank would last me 3 days.
Since I sold that TT, I've been camping with a cargo trailer. Flushing with the porta-potti uses less water than what I'd been using with the regular toilet. My water is kept in a 7 gallon blue Reliance Aqua-Tainer jug, and for washing dishes I set it sideways on a shelf I built, with a dishpan below to catch, and I open the spout to a dribble as needed. I've learned that 5 gallons can last days and days when it is used conservatively and when there isn't the force of a pump behind it. Washing does not take a sink full of water, but only an inch or so in the bottom of a kettle, and rinsing just enough to get the soap out doesn't take much either. It does take a different mindset and a bit of practice to do things this way, but it's not a hardship... one just has to remind oneself that one is 'roughing it'. ;)
That said, you'll have to try camping with the number of people you will have along and monitor how much you are using, so you can gauge how many extra containers you need for the number of days you're planning to camp away from water spigots. For staying in campgrounds, though, there's almost always a spigot somewhere even if not at each campsite.
Happier Camper seems to be building good trailers. With the modular block interior units and maybe the rear hatch you'd have a ton of flexibility (though not a ton of space, obviously). One downside will be that (I think) the upper storage cabinets are pretty shallow and won't hold much, so almost all the stuff you store will be down low in the cubes; you'll have to do a lot of bending over and rummaging to dig out what you want (headlamp recommended).
FWIW, my cargo trailer is a molded fiberglass empty shell too. I ordered it from Li'l Snoozy in South Carolina; they were building out the interiors of their shells as electric-only TTs, but I ordered one with only a front shelf and nothing else inside. They went out of business but now have been started back up under new ownership, see
https://snoozy2.com/ Not sure what they would charge for an empty shell nowadays, but it might be quite a bit less money than the HC1 and only a little bit less amenities. I've since built shelves along one side and extended the front shelf with some cabinets, but that's about it.