Probably an alko would be best as its an alko chassis. Quick & easy to hitch up and they stop fore & aft pitching. You need a special alko extended tow ball.
Tow ball on car is the one I used to tow caravan with which had a alko stabiliser fitted cant remember which model probably 2004/3004. I think is a swan neck. Had to get an adapter for the electrics as its 13 pin single plug on car.