2013 ecoboost F150 LOAD CALCULATION - (Specs from Ford Fleet)
ENG - 3.5
GVWR - 8200
PAYLOAD - 2590 minus 1000#tongue + 500#stuff + 600# ppl = 490# remaining capacity
frGAWR - 3750 - minus 300# (half the passenger wt)- curb = 300# remaining capacity
rrGAWR - 4800 - minus 1K# tongue + 500# junk +300# people +rr curb wt = 513# remaining capacity
frCURB - 3150
rrCURB - 2404
TOTALCURB - 5554
There you haved it folks, 500# payload RESERVE, 513# capacity remaining on the rear axle, 300# remaining on the front. Thats a lot of baloney the OP could carry on top of the trailer, his family, water, generator, and so on.
Happy trails folks, don't believe Mike when the 1/2 ton bashing starts, the F150 is in no way a 1/2 ton. It's actually a consumer 1 ton. (Flame away, but first answer, how many tons is 2590#?)