to be on the safe side i probly would wait until you came back from break. that way you know the tank has gotten a little bit longer to establish itself. i was always told you have to wait on or around 6 months before you should start looking for corals. but that is what my LFS told me a long time ago, so idk if thats true. if you did get anything i would say a small zoa if that. but that is it. i would finish your fish stock and CUC before i bought corals.
did you ever fix that filter?