wait until you get a bigger tank...or if you cant be screwed waiting go for a datnoid or a bichir for your 55gal...whn you do get a larger tank get a gar, there awesome fish!
Eric,
Shame your not in Sydney bro, There is a guy at the fish shop called Aquamart in castle hill he has a 8x2.5x3 tank and I think stand. He only wants a couple of hundred for it might be worth your while to give him a call