Convertible top rear window Options

[1soljaslim5]

So just to add more to the list and just my luck i noticed that the rear window on my convertible top has begun to detach itself






I've made several calls to many upholstery shops and most of them are saying i have to replace the whole part which isnt cheap and the labor itself i was charged 800 bucks which i think is ridiculous let alone spending that or more. anyways to the point the question here is.. am i screwed here?? or is there a much cheaper solution??