I have an adjustable "tow pole" that I have made up, its just over 3.5m long in 3 sections, has a 50mm hitch one end and a ball on the other and is assembled and fitted in minutes with no tools needed.
This lets me keep the front wheel drive VW van dry and on a firm part of the slip for good traction.
Mine is homemade but there used to be a guy on Ebay selling them, this would be a cheaper route than re- rollering your trailer. Could be worth looking into.