From the reviews on that cover:
Nice cover, a good value, had an issue with sun fading. In short time it went from forest camo to a pink desert rose. Will be interesting to see how it holds up over time. A tight fit on my Eddyline Sea Star for length, but good width. Edit: Company contacted me immediately after my review to apologize for fading and send me replacement. I was definitely NOT expecting anything like that. Five stars on customer service.


  For under $40 if they will stand by it and send you a replacement, I don't see a downside at the very least you might get a idea for a DIY cover and maybe use the bungee cord and tie down straps on your DIY one.

Here's a Tyvek canoe cover for $100.
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  5 Star rating BUT it says its not for long term outdoor storage??

  Or you could go this route:   (You need to Login or Register

Between the blazing sun, high humidity and high winds you get in Fla, I don't think ANY cover is going to last for very many seasons.

  I think whether you build a PVC rack or buy a rack, having a reflective roof/tarp would go along ways to stopping that sun damage.