I too would recommend a local shop and caution about air flow.
Now I use a "DROP" adapter to tow my car. Used to have a "Dual" adapter (but it turns out to have too much drop) You could go with a "Drop/Rise" You might have to have it custom made but with this type of adapter you have two receivers on teh rear. one for the tow bar (Bottom) and one for the scooter (Top) Which is how I carried Wife's scooter by the way. And there is one more option as well.
But I've not yet eliminated all the variables on that one.
Home was where I park it. but alas the.
2005 Damon Intruder 377 Alas declared a total loss
after a semi "nicked" it. Still have the radios
Kenwood TS-2000, ICOM ID-5100, ID-51A+2, ID-880 REF030C most times