I use a Reese Weight Distributing hitch with Dual Cam Sway control and 800 lb bars for my 8.5' x 20' enclosed car trailer (about 5,500 lbs).
Before buying the bars you might want to either borrow or buy a trailer tongue scale and measure the actual tongue weight of your fully loaded trailer. Doing this measurement gives you an accurate tongue weight and takes the guessing out of it. Using a scale also gives you the ability/opportunity to redistribute the weight inside your TT should it be too tongue heavy.
I purchased one of these scales (about $100) and have used it for my trailer. The first time I used it I was VERY surprised how tongue heavy my trailer was. By making some simple adjustments, I was able to reduce my tongue weight significantly which was easier for me since I have a car trailer.
Before buying the bars you might want to either borrow or buy a trailer tongue scale and measure the actual tongue weight of your fully loaded trailer. Doing this measurement gives you an accurate tongue weight and takes the guessing out of it. Using a scale also gives you the ability/opportunity to redistribute the weight inside your TT should it be too tongue heavy.
I purchased one of these scales (about $100) and have used it for my trailer. The first time I used it I was VERY surprised how tongue heavy my trailer was. By making some simple adjustments, I was able to reduce my tongue weight significantly which was easier for me since I have a car trailer.