Working with Canon Lens 50mm f:1.2 Rangefinder lens_______PART_1__Motion Lapse film

This Canon Lens 50mm f:1.2 for Leica mount, had a stiff focus so it need to have a CLA. It's a simple focus system, but it's good to set some small marks just to put things back again.
I use TRI-FLOW to lube this lens.
There was some sign of fungus in the second lens group, but it was not good, even if I try to take it away with with Lighter Fluid.
The owner of this lens would like me to take off the focus lock.