I wouldn't say it's hard, the main thing is the prep work and making sure everything is blasted and degreased. This was my third one and I'm starting to get more confident with it.
I usually only buy the "sample size" and it is plenty to do a whole pitol, probably could do2 pretty easy. Cerakote has there directions on there webpage so you can see what it involves, sounds like you are really fond of your CZ (I don't blame you) so it might be a good idea to practice on something else first just to get the hang of it.