So I have been avoiding these conversations for awhile. They lost their fun with all the back and forth.
But since you say comfortable tow...lets look at the numbers.
You have them all now.
GVWR is 6900
Payload is 1430
GCWR is 14400
Axle rating is 3900 front and rear.
Now. The towing number...it is a bogus number. It means nothing in regards to a trailer and even less if that trailer is a camper.
So with a 6900 GVWR and a 1430 payload this means your truck has a base weight of 5470.
This base weight is an empty truck and full fluids(the 150lb driver means nothing to payload...that is a max tow allowance)
Now. If you use the VIN lookup you will get your 1430 payload and 8930 tow.
This 8930 is not the max trailer you can tow. It is the max occupants, cargo, hitch, tongue weight and trailer weight.
So. A 1500 is limited to a 1200lb tongue weight. They recommend anything over a 500lb TW uses a weight distribution hitch.
So, unless you are a rather small person traveling alone, it is also pointless to concern yourself with the allowances for towing. I weigh 300lbs myself...and have a wife and 2 kids (now that the oldest moved out).
But, lets say it is you and a passenger at 300lbs. The hitch weighs about 100lbs. Lets say you have everything else in the trailer.
The tongue weight they use for calculating trailer is 10%. Most travel trailers/campers have about 13 or 14 %. See where the towing number does not pertain to a camper.
Ok so with 400lbs passenger and hitch your base weight is now 5800lbs. So you have 1030lbs left for tongue weight and remember anything else you put in the truck takes this away. So that is a maximum number. Since you only had 8930 left to begin with...your maximum trailer would be 8530. And at a 10% tongue weight...you would be fine with 853 lbs. But a camper will have about 14%...which would be 1194...putting you over and making for an uncomfortable ride. So with just 2 passengers under 300lbs your max trailer would be 7350 with a camper/travel trailer.
You take more people or fire wood...that goes down fast.
These are the numbers. Not an opinion.
I use a 2500 to tow a 5200GVWR camper. But with passengers, wood, bikes, kayaks and TW i have 2400lbs of payload used in my 2998 rated truck.
Hope this makes sense when read. I always say a 7000lb GVWR travel trailer is about max for a 1500. But plenty tow higher. Not sure how they find it comfortable...but they say they do.
Good luck. Need anything explained in this better...let me know.
You want to enjoy the tow to camp. Getting there anxious and annoyed ruins the rest od the weekend and you will just be waiting to be anxious and annoyed on the trip home.