"I know I'm near my limits but is anyone else pushing their limits like this... Do you feel safe while driving, I'm not towing but maybe once a month total of 6 to 7 hours one way most of the time it would only be a couple of hours."
You are either overweight or not whether towing for 6-7 hours or a hundred. What others are doing isn't a basis for making a safe, responsible decision. Hit me when you are overweight and I'll take all your insurance will pay and then come after your assets.
It's not that difficult to determine whether or not you would be overweight.