I have seen others say payload reads "occupant and cargo should not exceed XXXX", there are others reporting the "sticker" saying this over on the dodge forum with Durangos. Either way it is between 1280 and 1340 according to other posts and the brochures.
You will also need the yellow sticker weight of the trailer.
Regardless I will do a little math for you so you know what you are dealing with. Not trying to be the weight police just making you aware. You can choose what you want to do.
I will figure it out with the range of payload between 1280 and 1340 since those are the ranges of the brochure.
Trailer weight with your added gear (you estimated) 6000#
Tongue weight at 12.5 = 750#
Trailer weight of 6800# (your heavy estimate)
Tongue weight at 12.5 = 850
Added items in the TV ( you state: Just my wife & I were not big, with a 30 lbs dog some treats & water for the drive is all that will be in the tv) = I dont know what not big means but lets say you weigh 180 and your wife 120? (not trying to insult her or anything - illustration purposes only) and a 30 lb dog, that right there is 330# plus lets say add 40 pounds for misc stuff (water, snacks, dog gear, suitcase, glove box items, ect). So we are at 370#.
370# + TW (750#) = 1120#
payload range of 1280 - 1340 leaves with 160 - 220 left before you are maxed out (by the numbers).
These were just speculative weight numbers and pretty conservative so you may be hitting the max when you get all of your actual weights. A fully loaded TT will hit your max with capabilities of trailer tow weight as well as payload. Your TV may pull it for awhile but after awhile it will start to wear out due to operating at the maxes each time you go out.
The best thing to do is find the payload sticker on your TV and TT. Take your TV to the scales, get the weight ticket, go home hook up your TT (empty) and go back and get the weight.
Subtract the first ticket from the second ticket and that's your trailer weight. Load up your trailer (ready to camp) and take it back for a third weight. Subtract ticket 1 from ticket 3 and that is your ready to camp weight, subtract ticket 2 from ticket 3 and that is your cargo weight. This is how I did mine so I know exactly what my truck is, exactly what my empty trailer is empty, and exactly what my trailer is ready to camp.
I did all this in one day, the first weight ticket was $10 abd each weight ticket after that within 24hrs was $2. It kills a day but then you will never have to guess at the numbers again.
I know I wrote a novel but just trying to help because I just went through this recently when I bought my new TT.
2015 Forest River EVO 2850
2012 Dodge Ram 2500 6.7 Cummins
Yamaha 2k x 2 with parallel cable
EMS 30 PI portable w/ Edison plug
Nights Camped (2016-13) (2015-13)