well after all was said and done, the final cost was about 3k. now there was 3 or 4 things that really ramped up the price. 1 was the door, i have an actual RV door. that ran alone about $400. 2 was the foam for the seats, since most of the used seats were trash, i opted to have some made, that was $600. 3 the fiberglass chop wasnt a big ticket item but it was $700. so there is over half of my cost.
now the basic shell of ply wood and 2x2s was only $500. super simple super light weight. 2 people could pick up the shell. it was about 250 maybe 300 lbs. i have yet to actually weigh the camper but if i did my math right it only weighs about 900 to 1200 lbs. Its not that heavy. i dont have huge water tanks, or a grey tank, or black tank, the heaviest thing in the camper is the arb fridge, its about 60 lbs empty.
you can difinatly feel the camper in the truck when you haul it but most of that is wind resistance.
If i had to do it all over again i would make the camper about an inch shorter. i didnt calculate for the 1/4" hinge and the 1/4" door frame so it hits the tailgate.
heres a few more pics.