Done today my 60D, after 3 years of postponing (for no good reason.. except I had 450D modified already so there was no rush)...
It took me ~1 hour (a bit more in total actually because I was frequently consulting instructions (
https://kolarivision.com/diy-infrare...sion-tutorial/).
The most useful tool were templates, downloadable from here:
https://www.youtube.com/watch?v=rxc9C1UrVVs.
Now, I need some clear skies :-)