Here is a model I made based on one on Thingiverse. It has a mount for the old runout sensor and did not work. I have included both a file with no hole guide and one that fit my extruder hole. You must find a spot to use your runout sensor as I glued mine, but I will eventually upload a file to the no-hole file that accolades it. I also included the f3d file so anyone can take their extruder hole dimensions and make their own. This file is based on the .stl file of the original as the f3d file was not given. Here is the original file that this is based on: https://www.thingiverse.com/thing:4900500?fbclid=IwAR2-7rS6zfaRTON-duW65JXqawsRCQ4a11A4Tq4IDw96CSmEJJbiBkcvoOw