First of all - welcome to iRV2. Glad to have you aboard!
Can you provide more information on the van? Many times a conversion van will weigh more than a factory van because of added amenities. Without knowing the actual weight of the van, published towing capacity, # of passengers, and hitch weight of the trailer it is hard to give you accurate advice.
2006 Crossroads Cruiser CF32BL | 2012 Ford F350 Crew Cab Dually
Been to all 48 lower continental states once! Starting over...