What is the best way to get two premium class tickets out of MCO to Rome on 9/15/15 and returning on 9/25/15. I noticed that most of the flight to Rome (via somewhere else in Europe) leaves out of PHI. I know it's early and one cannot see those flights yet, but I just want to become educated before those fares are released. Furthermore when the first outgoing fares opens up, I know will I be able to only book outbound flight only until the inbound (FCO to MCO) opens up.

This trip is to celebrate our 25th anniversary and we are excited to see Rome for the first time. Any insight and clues are appreciated here. Thanks for any helps. FYI, I hae been using the AA website to get an idea of the fares that are available now for travel 8/4/2015, as an example of what the points/fare availability will be for us

Points available
AA: 360,000
Mariott: 210,000