Local source for teleprompter / 2 way mirrors?

Hello vanhackers!

I’m working on a modified version of OpenEyeTap ( https://www.openeyetap.com/ | https://www.instructables.com/id/OpenEyeTap-3D-Printed-Programmable-Smart-Glass/ ), and I’m wondering if there’s a local source for 30R/70T 2-way mirror in Vancouver that someone can recommend. Otherwise I’ll use the interweb searches I’ve found to buy a sample, but I wanted to try some place local first.

Thanks for any pointers!