Hi Mike,
Hope all is well with you. Saw Ray a few weeks ago at PGRC.
I suspect you won't find such an animal ... but you never know what might be out there! But I think there is a pretty simple solution ... use a "standard" two-axis gyro .. or two single axis gyros on yaw and pitch, wired to the "traditional" rudder and elevator outputs from the RX to the gyro, then take the gyro servo outputs and put them into an aftermarket mixer that combines the yaw and pitch signals to drive the v-tail. There seem to be many ... here is one:
http://www.dionysusdesign.com/produc...roducts_id=174 and here is another:
http://www.gadgetparadise.com/121901/index.htm
Only disadvantage is that is "wastes" the built-in v-tail function of the new radios, and is a bit more work to set up. But I think it's probably the only way to use a gyro with a v-tail.
FWIW, I have a not-quite-new-in-box .. but never flown .. Futaba 2-axis gyro that I am unlikely to use .. yours if you want it.
Happy to make a small contribution to one of your masterworks! Just let me take the A-10 for a hop and we're square (just kidding...)
Dave McQ