Well if gross weigh is 19500. And it has a 1000 gallon tank the that’s over 8000 lbs of water so don’t tow it full 😁
You’re already down to 11000 lbs. minus 4 person weight you now down to 10500. Minus fuel weight if it does not have a full tank. Minus a pile of equipment.

I think you would be at 10k Max.


If it has a smaller tank I don’t think you would be over 11k

Without having more info. You