I just had a custom made cover for my boat and they also make bimini tops as well. I ordered mines on line from "www.boatcoversdirect.com. Check their videos out on you tube. Good luck...
Be careful with boatcoversdirect. If the product they ship you isn't correct or don't fit they will send a shipping label and refund you the cost MINUS shipping. I learned this when I ordered a cover for my boat. My year, make and model was listed in their site but when I got it I found out it wasn't made specifically for my boat but for they type boat. Where it was cut for the console it was about a foot too short and wouldn't extend down the sides or make it to the transom.
Needless to say after that fiasco I went with QualityMarineSupply for my boat cover and Bimini top. They are a direct retailer for Carver products if that matters (great quality and customer service).