I second a 6.2 F250 and with the 4.30 rear ratio.
I own a 12th gen F150 and just my topper, tires, skids, etc eat up 300# of payload (remember the garbage P rated tires that weigh 31# are included in the curb weight, throw on 55# tires that's near 100# gone)
Reg cab Short box trucks are...