Sometimes it just does not make sense to re create the wheel. Vengeant Trailers only makes enclosed trailers when it becomes extreme customization. Otherwise we are a dealer for Nitro Trailers. Nitro is a company that specializes in enclosed units and have many sizes and options. Turn around time is 4-5 weeks only and we even try and stock 2-3 of sizes. Give us a call to talk about our Nitro trailer dealership line up.