10x5 storage in my 8x5 truck bed

all my supplies are packed and loaded in the back of my truck. nothing
like moving my 12x10 shed in a box again. 400 pounds one man. my 2
fuel containers, generator, solar panels, propane stove, solar lights,
crank lights. found my 4 sleeping bags, my 14 camping tents, (2)55
gallon barrels, work boots, 3 tarps, one 10x10 pop up tent, tent
stakes, 2 solar showers, folder 6 ft table, grills, beer tub/ bath
tub, 1 spare tire. all I will need is tools to construct the shed,
food, water, cookware. did I mention all of that firs in my 8x5 truck
bed with the cab of truck has loads of room left over and more space
still in bed of truck....