RV er - To know how much you should be able to tow, there is a sticker on my door post indicating Gross Vehicle Weight Rating (GVWR) 16,000 lbs, Gross Axle Weight Rating (GAWR) for both front 4,300 lbs and rear axle 8,600 lbs, ant then a Gross Combined Weight Rating (GCWR) 16,000 lbs.
I took my RV over a truck stop scale (ready for travel) and weighed the front 3,260, total 9,020, and rear axle 5,760. My hitch has a maximum of 350 hitch weight and tow capacity of 3,500. If I could "beef up" the hitch, design wise I could tow 16,000 GCWR less 9,020 actual = 6,980 lbs. Without changes to the receiver hitch, I am limited to the 3,500 lbs.
Whether I would like the performance is dependent on personal desires.