https://timbren.com/i-30497770-timbren-ses-suspension-enhancement-system-sku-gmrck15s-rear-kit.html#!year%3D2020||make%3DCHEVROLET||model%3DSILVERADO 1500||submodel%3D4WD STANDARD SUSPENSION
Use these. Your truck is rated to pull 9500lbs. If your pulling a 5100 dry with water and gear you'll be at 7500lbs. Well under the truck's rating. Especially if you're only going to be doing 4-6 trips a year. Also use a good weight distribution system. 2500 is definitely better to pull with, but you're well within in your limits, unless you want to drive a 2500 all the time as your daily.
I use these in my 2019 Trail Boss 5.3 8 speed and pull a 28' toy hauler with a 4seat rzr1000 with water & gas. Flat & up hill 55-65mph, downhill I keep it to 50mph for control. Like one of the previous guys said, depends on your comfort and experience level. Go on a few short easy trips first, before you head out on a journey. Good luck