Rear view mirror bracket

Hello. Ive recently bought a mk1 cabrio and it has had the windscreen replaced at some point. For some reason (i reckon they couldn't source it) someones fitted an aftermarket rear view mirror. I can find original ones on ebay but none of them have the little bracket that sticks to the screen. Are my options just find one from someone thats breaking a cabrio or does anybody know where i can get one, im struggling massively!

Nice one,
Brett.

vw still sell them, 4a0 845 543, but 10.94+VAT! grub screw is n 902 349 01, 1.70+VAT. and if you want the glue, d 000 703 a1 at 7.81+VAT

Brilliant mate, are you sure these part numbers aren't obsolete? Ill go to the dealer Friday when I'm off and see what they're saying, nice one!

according to my copy of etka they're available, i updated it a month or so ago

mine has a habit of falling off weekly from what i'm told, it's currently in the footwell. is the glue really good and will bond forever n ever..well not a week anyway?