Try contacting Acat144 on this Forum, he uses one. He towed doubled stacked A-Class's from Key Largo to Louisiana. I know Dennis Palin uses one to tow his 18 sq.

I just bought a Ridgeline but I have not tried it except for local towing. BUT, while I was buying it I learned that Honda worries a lot about transmission temperatures while towing. Try calling tyour dealer to see if their are any service bulletins about your particular Van.