A simple calliper hanger that can be screwed into place with two 3mm wood screws.
Additionally, FreeCAD design file can be found here:
https://odysee.com/@ZigaMDIY:9/CalliperHanger2-FreeCAD-file-ZigaM20220129:0
Tips and support kindly accepted here: https://paypal.me/ZigaM3
Or with LBRY (LBC) credits, through my Odysee channel: https://odysee.com/@ZigaMDIY:9
I also design on redbubble: https://www.redbubble.com/people/reintegration/shop
And I promote my RB designs on Pinterest: https://www.pinterest.com/reIntegration42