theres that top again.. where do you find those at? I would love one of them. 
Its a K2 top that used to be made by Kayline but they went out of business. All one piece. I heard the patterns were purchased by another company but I doubt it would ever be produced again.

I looked for one for years before buying this one off ebay. Besttop does make a bikini top and deck cover for the early Track/Kicks, but no windjammer!!!

They do make all three pieces for the 95+ models though!