Hey David; I should think anywhere with a concentration of marinas/boating services would have a custom canvas shop or two. We had ours made custom and it only has one rear vertical post on each side and snaps to the cabin roof ahead of the door overhang and because it is double canvas zips around the outside frane rails. There are two slightly arched crossovers to support the roof in addition to the rear rail between the two posts. It's a cracker job and is tight enough to leave up trailering, and includes side zips and snaps at the top of the hull to add our choice of bug netting or window panels to completely enclose the cockpit when desired. In any case, far more appealing and better flowing lines than the factory folding biminis, and less poles and stuff to be working around and looking past all the time. Check the yellow pages and internet for your area and if you have a trailer a couple of trips - one for all the measurements, and one for the install should look after things if you can find someone who does quality work. Ours also almost exactly matches our wine coloured hull. Two years later and a fair bit of trailering and it still looks good as new although my whole rig is stored inside when not in use. Good luck.
