I use the pedestals from my butt seats to support the cover. One in front and one in back. I took two tennis balls and cut slits in them so I can slip them over the ends of the pedestals so it distributes the weight of the cover a little better. Works great for water, but when you get a 12" freak snowfall, not so much. Had to buy a new cover after that since the weight of the snow forced the poles throught the cover. Stoopid snow.
Mine was close to this. 2in pvc pipe from back to front. supports at the seat positions (no seats in boat used) had one support between the windshields. Put tennis balls over trolling motor prop to protect the cover. It was eqsy out easy in thow on cover and done, less than 5 minutes. It would look like an a framed house so the water would not pool on cover.