Since you're settling on a high performance allseason non-runflat, here's an interesting comparison test:
https://www.tirerack.com/tires/tests...y.jsp?ttid=230
Just an idle thought at this stage, but I'm thinking of putting the PZero allseason non-runflat on the front for better steering feedback while keeping the Cinturato P7 runflat on the rear. (An additional benefit is that it should add enough traction to the front to put the balance of the car into oversteer, which I would like, but probably doesn't matter to you with AWD.)
The main reason for keeping the runflat on the rear is that all of my tire punctures in 55 years of driving have been on the rear. The best explanation I've heard for that is the front tire kicks up the nail and the rear hits it at an angle that drives it into the tire. If this combination works I will be comfortable without the compact spare taking up trunk space.
If it causes some handling issues I'll buy another pair of PZeros and get used to carrying the spare all the time.