I now tow a 24 ft rbs with a dry weight of 4595lbs.We carry 2 adults and 1 small person --dog--.The tundra 4.6 v8 pulls very good.We would like to get a bigger tt.The tundra is rated at 7900lbs.Would a 30 ft tt with a dry weight of 6374 lbs be too much? If that is too much, what dry weight should i be looking at on a new tt ? Thanks any advice would be helpfull.