These would be better options IMO:
https://halolifts.com/products/halolifts-boss-aluma-mountain-package-fits-f150-2009-current-including-the-f-150-tremor?variant=45129641590998
https://halolifts.com/products/halolifts-boss-aluma-2-0-ultimate-kit-fits-f150-2009-current?variant=45129642213590
This is a good website: https://tiresize.com/comparison/
I run 265 70 18 for winter tires and 275 70 18 Tremor wheels for summer use...
https://www.f150gen14.com/forum/threads/what-did-you-do-to-your-f-150-today-🙋🏻♂️.1314/post-744761
I would be REAL cautious about pulling a heavy trailer until your rear diff gets broken in and the gears are set. Check your owners manual... IIRC its 1000 miles