2012 seadoo 210sp snap on cover replacement?

[sunvox]

My local dealer only has trailer covers available for my 2012 210SP, and the boat came with a snap on cover that is ideal for while the boat is on a mooring. Unfortunately the cover is starting to tear more and more each year and repairs are getting harder. Does anyone have an idea on how to replace the cover?

Thanks in advance.

Joe in NY