In fall buying a travel trailer, and plan on customizing it for 4x4 usage

This fall I plan on purchasing a pop up camper or smaller rigid camper. My goals are to spend about 2-3,000 for the camper then replace the axle and lift it enough for 33's. I will also be doing some frame mods and possibly cutting the rear and adding some skids for better approach and departure angles. I would like a unit with heat and ac, and could sleep 2-3 adults and 4 kids between 7 and infant. Also a unit with a stove sink and small shower. A pop up would be a compromise, but may be the way I go. I am also hoping to keep it under 3,000 lbs. If I do not get a camper I will never be able to get my whole family to go camping again.

Smokey...take a look at these ..i have been eyeing these puppies for a while...look to be very very easily owner customizable...and very very light...

http://www.livinlite.com/qs-tentcampers.php

oh yeah and they actually do a "off road" version...tires are 31" but looks like you could put bigger under it too...

Those are looking really nice. They even had a hardtop one on the site with a yellow fj pulling it. I couldn't find any prices, but I'm sure they are over my budget. I am shooting for 2,000 dollar range, and under 3,000 lbs. I found a really nice 95 pop up that sleeps six and already has the front and rear angled for departure angles just needs a 4 inch lift and tire swap.

any body got any long term experience with pop ups and longevity. Thinking about starting to buy and mod out these style units for moderate off road usage.