I've always believed that online sources are good for general information only. That being said, if you can't find it on the PHC website and in the individual chapter sites, then you most likely won't find it anywhere else.

No official site will tell you "this is how competitive it is..." or whether or not you need recs.

Ditto with contacting the Greek Life office and alums in the area. Unless they're from that campus, no one from GC would really know how Recruitment's like over there. If you need help getting a hold of Panhellenic Alumnae Chapters there, you can get more info at www.npcwomen.org