Even if the static weight on the MH is 0 lbs the tote and trike are about 2400 lbs. That dynamic up/down, front/back will be apparent in the TV. Think of the 5er as a seasaw plus the mount is not fixed but moving over the 5er wheels.
With the trike I would want brakes, shocks, trailer conversion, horizontal pivot and brake controller. $10,000 plus with the tote plus installation.
Also think libability - You're in a accident that is not your fault. You have non 5er mfg modifications. What do you think you are going to tell the judge? Not to mention you're in a state where the tote is illegal. Will your insurance be honored? Protection of my assets is always the primary consideration.