Nice wheels!
I have 9.5J ET15 fronts and 10.5J ET15 rears and they look spot on, so those sizes ( with ET22) should be good. Just check Brembo clearance if you can, if not might have to run spacers. Also because you're lowered 30mm I wonder whether your fronts will rub, as I know mine would if I was lowered by 30mm, so you might want a front arch roll. If you have Brembo issues and have to run a spacer, then you most definitely will need one.
EDIT: As for tyres I am running the ones I had on my Rays with some stretch and they are fine, although needed to use a bead cheater to get them on. Mine are Continentals at the front and Bridgestones on the rear which both have good sidewalls for stretch.