I can't speak to the weight issue, except to say that 3500 lbs is misleading. I have a small hybrid and a Ford Explorer and they JUST fit.
As to the bed ends being a solo thing, my answer is NO. I camp alone and I need a second person to help put them back up. It's not that they're heavy, but the canvas must be tucked in as you go, along with the cables. (Easing the bed ends down is no trouble at all.) If I won't have help, I just turtle. It's no trouble at all.
Of course I'm biased, but I think hybrids are the way to go. I'm a fan of sleeping under canvas whenever possible.
Happy camping!