No idea how long they can be stored. My FMA Cellpro chargers have a "STORE Lipo" cycle that brings the pack up to ~ 50% (3.84v/cell) which, according to FMA, is a good charge level for long term storage.

so chances are i can charged them and they be pretty much safe in storage for a month or so?

Never fully charge a lipo then store it. If more then a week make sure its around half charged. If your not ready for the batts I would wait the prices go down all the time because the technology is moving so fast to higher Cs.