It just looks like, you’ve tried to insert pin into boot while it’s in situ, I did that first time, wasn’t right, so popped boot out with screwdriver, put on pin and then pushed back in place
Oh, yeah ))) tried to put boot into master cylinder and than push pulley into it...with suffering But at clutch master cylinder tried to put pulley into boot 1st, screw pulley into lever and than install boot into master cylinder. Sounds tricky, but less painful than first variant.
Got my other set of CNC levers today, mounts are the same, same knob in same place, only difference is the lever material. Now I can request a refund for both.