leave it alone.
I HATE that design where the cap is shoved in a hole in the panel... often the old capacitor fails in such a way that it's impossible to remove.
if the system is running, and the cap is mounted in a way that it will not short or rub a refrigerant line, I'd be happy for the quick service.
The TRUE highest cost system is the system not installed properly...
Do you go to a boat repairman with a sinking boat, and tell him to put in a bigger motor when he tells you to fix the holes?
I am yourmrfixit