Elec brakes and top quality tires. As for picking it up by hand and hauling it around. I only have to do that if I am swapping tow vehicles. The solution to hauling around by hand at a camp site --- I installed a class 1 hitch on my PT cruiser and that is what I move it around with. Unfortunately I don't have one on my Nissan 'JUKE" which when the DW and I go out, is what we use, mainly because I cannot, right now, afford($258.00). So for now I bite the bullet. I can appreciate the poster who said he was elderly. I to fit that category also so I can relate. But I would still always go with a tow dolly. I will NEVER tow 4-down.
