Wide split cardioids + X/Y cardioids in the center.. hmmm. One thing I'd suggest say is not to block the vents as that's unlikely to work out well (but try it anyway for something you don't care about and report back!)
If inside your best bet will probably be to either:
1) run the wide-spaced cards PAS, and the X/Y pair angled +/- 45 degrees (90 degrees total).
-or sort of the inverse of that-
2) run the X/Y pair PAS, and the wide-spaced cards angled +/- 45 degrees or more.
^
The second is actually somewhat similar to the front-directional-core of my OMT rig which uses a M/S pair in the center between +/-45 degree angled supercardioids spaced about 2' apart (~1' to either side of the center M/S pair). It also includes wide-spaced omnis and a pair of rear-facing mics, but I typically listen to various combinations of the mics to asses what is working well and it usually sounds very good with just the center coincident pair and the +/- 45 degree angled near-spaced pair on their own.
If outside in the sweet spot I'd probably go more radical and run the X/Y pair PAS and the wide-spaced cards angled +/- 90 degrees (pointing directly to either side)
Check out Gutbucket's PAS table. That should get you dialed in nicely. I believe it's linked in the signature line of his posts.
That's primarily intended for optimally angling/spacing a single pair of PAS mics. When using a combination of a spaced pair plus a single center mic or coincident center pair, you should push wider with the spaced pair (spaced, angled or both) than the PAS table suggests. Twice as much is not out of line and should work well. Otherwise you can get to much conflicting in the middle. Go wider to leave room for the coincident pair to do its thing.