Look on ebay and you will find utility trailers, both open and enclosed, in a wide variety of sizes, weights and capacities. Prices are highly varaible, ranging from $1.00 to thousands offered,  but you can pay whatever you think is acceptable. In view of the numerous postings regarding fuel mileage and the price of gas I am wondering why anyone is interested in hauling more stuff behind an already inefficient vehicle. Lighten up and save gas and money.