I did my own ceramic protection on the ZS I’ve got now but there’s not a chance I’d do it again. It took me 2 days to prepare and treat the car and that’s likely to be twice as long now, assuming I can actually get it done. I understand the wish to get the dealer to do the job, hopefully they’ll do a good job for you.
You’ve gone for the combination that’s sitting high in my thoughts, although waiting for May might change my mind.
I'm Autistic, if I say something you find offensive, please let me know, I can guarantee it was unintentional.
I'll try to give my honest opinion but am always open to learning.
Mark