Pentax 67 mirror size / replacement

Hello is anyone able to tell me the exact measurements of the mirror in the Pentax 67 - 67ii models?

Also, does anyone know where I could get a replacement mirror, if at all possible?

Thanks to everyone for their kind help!

You should contact this Ebay seller-
https://www.ebay.com/usr/marty1107?_trksid=p2053788.m1543.l2754
He may or may not know the details already. If he doesn't know, maybe you have a mirror you can use? He will cut mirrors at any thickness and dimension.
If neither of you know the proper dimensions, drop me a message and I can get them from a camera at work.

The mirrors are a proprietary design and in the case of the Pentax 67II are matched to the metering matrice; that is to say they are semi-transparent/rear-silvered. It is not a case of just getting any mirror cut to size off eBay and thinking that will do. Have the mirror replaced by Ricoh-Pentax for a reputable dealer familiar with these cameras.

Why is the mirror in your Pentax 67II in need of replacement? They are not interchangeable from the Pentax 6x7/67 to the Pentax 67II