Towing an RV at your tow rating will put the vehicle over a couple other ratings by maybe 500 pounds. Payload and receiver will limit you first. Payload as equipped can be found on your drivers door locating this sticker:
The receiver will have a sticker like this with two sets of ratings, with and without weight distribution.
Payload should cover the weight of family on-board, activities to keep them occupied while traveling, cargo inside, and trailer tongue weight. If payload is 1300 pounds, family and stuff inside weighs 600 pounds, then you only have 700 left for trailer TW. That's about 5500 pounds loaded TT.
I believe your receiver has a limit of 900-950 pounds. That's about 6500-7000 pounds loaded TT.
So you are doing well to estimate 1500 pounds of stuff over dry weight. It will probably be higher for longer than 1-week trips. I think it wise to estimate 200 pounds of additional tongue weight over published dry weights too.
