Hello, I'm also looking at options to install a wide angle Longacre type mirror to the windscreen. I was watching a YouTube video by CaterhamJoe (Fish & Chip Run 2022), he has a screen mounted wide mirror. He has replied to my question and advised that it is the Pitking wide view mirror from DemonTweeks, and some GoPro sticky mounts and GoPro "J-hook" mounts to attach it to the windscreen. Hope this helps. Then in another video (by AdamC3046), I spotted CaterhamJoe's car which shows the mounts more clearly.