What is your GVWR? Take that number x .2 to guestimate max pin weight when fully loaded. I would expect GVWR to be at 15500? Gives you 3100 pin weight.
What does your door sticker say for payload? For RAWR? You really are actually limited by rear tire capacity--what is that number?
Take payload from door and subtract guestimated wt of passengers and everything else you will have in truck--that is what is left for pin weight. Wives? Hitch? Dog(s)? Firewood? Tools? Beer? All that is gonna add up.
I believe you will be over on several areas...
'15 38RSSA Mobile Suites
'05 36TK3 Mobile Suites--retired but not forgotten
'10 F450 new to me
'09 F450 Lariat 4x4--died