Help choosing wakeboard and bindings

Hi i am a beginner and i like to buy a wakeboard and bindings. I usually ride a friend´s LF stance 2006. Here in Argentina we cant test de wakeboards and the bindings and the prices are higher than USA.
I did a research and for my money (550 usd) i found:
**LF omega 2007 with CWB Boss 2004
**Neptune (made in argntina same of neptune misson 2002) whit Obrien Link 2007-
**Obrien Vision 2006 with Obrien base or liquid force Element 2006.

All the option are brand new, what its the best option???

Thanks in advance!!
Gonzalo