I presently use a 24" x 54" Jet Sled with a nylon cover that I pull behind my Ski Doo. To gain more storage area, I've been thinking about building sides. Preferably, I'd like to make this an additional 8 to 10 inches higher. Before I do, I'd like to hear if anyone has also done this, maybe have a picture(s) and if they could make any recommendations.