Not sure about Clear ray and ozone together, but can't see why not.
I bought a Jacuzzi 230CD last year. I gave them a list and of things and the price I was prepared to pay which was £1000 under the RRP.
I asked for;
Installation, cover, cover lifter, optional ozone, steps and chemical starter pack. All were included in the price.
I don't think its unreasonable to ask for those items included in the price, but at the end of the day it depends what overall price you are paying.