After having the boat wrapped last year, I untied the belly bands, loosened the wrap around the engine and worked my way forward loosening the wrap. then went around to the front and pulled it off. Rolled it up and put it under the deck with the frame (which was from the previous time I had the boat wrapped.)
I get more than one year out of shrink wrap. May sound frugal but I don't contribute a collassal ball of plastic to my local landfill every year.
Even when it's time for new wrap, I use the existing frame. My buddie charges me just to wrap it. The frame is up when he gets here. Even if you go with a custom cover, you're still going to need a frame/support.
If you want to go with a cover, maybe have it made with a frame in place? If it's a waterproof cover, don't forget the water will pool in the low points.