Mike,
Whats the matter, that blue tarp over it now not doing the trick?

I drive by your house a few times a week and see it, I am in Dover too. I actually had a 215 Explorer with a 225 opti on it, fun boat.
Try Just Right Awnings here in Dover, 740-8416. They just did some custom modifications to our new pontoon cover and it looks great. They are off route 9 on Industrial Park Drive. Rochester Sports Center uses them for most of their work.
We went with a half enclosure on the back (factory) and had them modify the factory mooring cover to turn in into a "tonneau" type cover for the front half of the boat so that we could still keep it weather tight. When I go back to the dealer on Thursday I can try to grab some pictures of their work if you are interested.