had shop do it when swapping new tires and rims, didn't itemize.
level...no rake!
said it was pretty straight forward, didn't need to change the shocks, bump stops or mess with the pinion angle
see below from American Truck...
I leveled my 2020 Lariat by lowering rear 2" with shackles from Amazon $36 (Psrorkeu - 1"-2" Lift Lowering Rear Drop Leaf Spring Shackle Kit for 2015-2020 Ford F-150)
cover has built-in slam latches that let you lock down the cover and secure gear inside the bed. The aluminum slats also add strength against break-ins...not getting in with just a razor knife.
got mine from amazon 4 yrs ago... quick and cheaper. love it I just throw a small tarp over it if hauling anything messy...vacuum occasionally never had to wash