Backup camera mount for Scion xD (below license plate)

[EDIT] - I realized that I had not uploaded the nut used to secure the camera to the mounting brackets (you'll need 4). It's there now. Also, the original description stated that you needed the thread library, which isn't the case for the STL files included.

I recently installed a new head unit and reverse/backup camera (Esky, from Amazon: https://smile.amazon.com/gp/product/B07KH92MXT or others with a similar form factor) and ran into a problem mounting it on my venerable 2008 Scion xD: if I