You want a ski powerful enough for Freestyle but can't afford a WaveBlaster. I'm afraid it's going to be a tough search. (Granted, I am not sure how much one costs over there)
An X-2 would be my recommendation, but you say you have trouble finding one.
If you could work on upping your budget, I think that a fixed steer Superjet would be your best bet. Anything that's small, light, powerful, and lookink good will cost you a bit of money.