Reality check - 2006 Chevy 2500

Inside your door jamb is a yellow sticker that will say "The combined weight of occupants and cargo should never exceed .... lbs." What does your sticker say. The fiver you are looking at will be about 11K lbs loaded for camping and normal real world tongue weight will be 20-25 percent of the trailer gross weight so you are looking at 2200 pin weight minimum. Compare that to your yellow sticker payload. The diesel/automatic and bigger cab and 4x4 on your truck tells me your payload may be right at 2000 lbs or perhaps less. Last, the term "half ton towable" Keystone throws around is marketing and not real world and should never be taken as true in almost any case. There are few, if any, half ton trucks capable of towing a 5th wheel safely. Head over to https://www.keystoneforums.com/forums/index.php and talk to the folks there.