Oren,
The bad news is that for $600 you wont get to far with 2x2 patternship.
You can contact Asher at Rishon store and get form him 2x2 Balsa pattern model named ONYX (Made by Protech)
It is a good model along with OS140RX engine you will have a decent solution. To the best of my memory the
cost of the airplane itself is about 2500NIS.
Regards
Amram