Please don't go cheap on that plane. It deserves the best. I used these pullys and yes they are not cheap, but worth every penny for the WOW factor. They make the plane very scale. I used them for double water rudder with full cross over cableing AND rudder retract system.
Your plane is going to be a beauty, give it the best..........

Go here.

http://www2.towerhobbies.com/cgi-bin...L=++&search=Go