Take a look on ebay...Several years ago I was able to win an auction for a brand new MC cover for my boat for under $100. Mine is made by Great Lakes Canvas, has held up pretty well.
Boat: Med Blue 2012 X2
Old MC: 1998 Maristar 225 VRS
Rig: 2009 Chevy Tahoe LTZ
He who dies with the most toys wins...I'm losing right now!!!