Towing with a 31' Class C, frame questions

Thanks for the replies, I had not intended to use a drawbar, just the standard hitch into the receiver. I figure I'm pretty close to what the tow rating is now, and with the frame reinforcement I should be good to go. I know the drivetrain will handle it, just want to make sure I don't start yanking stuff off the walls inside. The PO towed 3000#'s on a car dolly for thousands of miles with no ill affects, I just want to make sure I do everything I can to make it as strong as possible.