As a side note I posted this in the "other" forum.
I bought a Transheild cover a few years back. It is made out of shrink wrap material with a draw string waist. I used it for 3 seasons before I sold my boat and probably could of gotten another two out of it. They only sell through Amazon now I think, but when I bought it I got it directly from the factory for $160. They (Transhield) provide covers to the boat manufactures to ship from the factory.
http://transhield-usa.com/
http://www.amazon.com/s/ref=nb_sb_ss...ld%2Caps%2C427
The only thing I found is when you install it for the first time whatever support you use, you have to use the same layout the following years to get the same fit once the cover is shrunk.