I got the cheap limit switches off Amazon
( https://www.amazon.com/Genmitsu-Micro-Switches-3018-PROVer-3018-MX3/dp/B08P1D6WTR )
I was disappointed to discover that there was not a coherent setup for mounting them available at large. So I did one.
Will add photos after I get it on my machine.
Update: 12-8-2022
So I noticed that I neglected to include stand offs on two of the mounts and the trigger bar for the Z axis needs to be wider to mount on to the spindle holder. I've updated the models to account for that.
In addition one of the f3z files has a full model of a 3018 router in it for creating a machine setup in Fusion360.
The author hasn't provided the model origin yet.