I just got some full firelfly jars from the auctions for 750 each. I think it is a reasonable price and I am looking for more jars with 7 fireflies in it. IM or message me, if interested.
I'll take them all. :-)
Either when we meet in the game or, if you trust me enough, just send them via mail and I will send the currents back next time I am in the game.