You must missed the most important number, the truck's driver door silver sticker payload capacity number.
It should be on the same silver sticker where you found the FAWR and RAWR numbers.
It is mentioned many times in this thread.
The only better way to get that number, is to weigh the empty truck on a scale and subtract that from the truck's GVWR.
Also, 13% of the TT's GVWR will mean a loaded ballpark tongue weight of 780lbs, which is over the Canyon's max hitch weight.
Dan-Retired California Firefighter/EMT
and Zoe the Wonder Dog(R.I.P.)
2016 PrimeTime TracerAIR 255, pushing a 2014 Ford F150 SCREW XTR 4x4 3.5 Ecoboost w/Max Tow Package
4pt Equal-i-zer WDH and 1828lbs of payload capacity