That is a bit confusing but Ill start with 0° all around and see if I like it. The car regularly sees triple digits. I don't really want it to be "darty".Less toe will help turn in. Some people even go a bit out on the front as well, not my cup of tea.
I think you'll really like zero all around as a start. I know JN2K108 has run this as well. Car feels light, poised to turn at the slightest signal from you without being overly darty. I don't have first hand experience with the Haldex AWD but I wouldn't image it to be much different. I have run the Audi Quattro system & that needs a little more encouragement to get the rear moving. Toe out in the rear for sure.
Found a great deal on Megan Racing with a somewhat soft spring rate. The valves are adjustable compression and rebound unlike some other volvo aftermarket coilovers. They are for FWD so I am not so sure how the rear will turn out. I may have to flip the top bracket or fab up a bracket to move the mount to the top of the strut tower if the strut is too long. That is for another thread though.what coilovers are you getting?