Can you fit Speedmax computer mount to Aero extensions?

I have a new Aeroad with gear groove aero extensions on the way and i'm looking for the best garmin computer mounting solution.

The mount that Canyon make that seems to be built for this is out of stock until August which is too late in the year for my races and such. https://www.canyon.com/en-gb/gear/accessories/bike-tech/cockpit-and-handlebar-mounts/canyon-gear-groove-aero-extension-computer-mount/10013150.html

The other option is https://www.canyon.com/en-gb/gear/accessories/bike-tech/cockpit-and-handlebar-mounts/canyon-speedmax-computer-mount/10014407.html#reviewsSlidesAnchor which is in stock but although it looks like it would work I wondered if anyone has had any experience with this.

Open to other solutions too.