The right mirrors...

Had a bit of a search here and elsewhere and am deeply confused.

I have electric memory seats with all the bells and whistles and folding mirrors...or I did until someone damaged the passenger side one last night...it's now floppy...so I guess the worm gears are shafted plus any other internal damage.

Audi have just given me PN 4D2858531L3FO at £258.28 plus vat and a delivery date of August...

Does anyone know if any of the other a8/s8 mirrors will work/fit? I need a working mirror for the moment, if it doesn't fold...no great shakes!