That is great news!

I'm happy to hear of your interest in AEPhi.
I can't help much with the
re-chartering process, but I was a founding sister of my chapter. Long story short, my chapter started out as an AEPhi interest group, became a local sorority when Panhel decided not to open the campus for expansion, then two years later when Panhel did allow expansion, we became a colony and then a chapter of AEPhi.
If Panhel has given you its blessing, the next step is to contact NPC and indicate that your school is open for expansion and that there is an interest group with a preference for AEPhi. NPC will forward your info to every member sorority not already represented at your school. Interested sororities can then contact you (so you may be hearing from several orgs).
It wouldn't be wrong to contact AEPhi nationals too. There is contact info on the
national website .
While you're doing that, get your interest group together. Having a bunch of interested women (rather than just two) will work in your favor. Start putting some organizational structure in place, elect some officers, and start doing things as a group (philanthropy work, social activities, etc).
Best of luck!