Chino - If you are building the Curare, find the Futaba equivilant to the JR DS821. Maybe you can use this servo with Futaba receiver, I am not an electronic's expert here. The DS821 can be used in all application's for the plane you are building. This servo is only $29.95 each, great deal for the money. You may get more answer's here why one servo is better then another.

The KPS-15 answer, maybe it is being used, I do not have any knowledge about that. There are guy's using old radio's with success, so he may be right, for vintage application's. Chino, you can also find someone in your area by posting a request for help close to where you live. Isn't there an RC club close to you ?

Crank