Seems like you don't need much torque on the servos, in fact I use more on my warbirds (JRSport ST126MG) and giant scale 3d planes (HS-5985/5955) so I might be able to use my JRSport ST126MG. But what about the other gear I need, where can I get them cheap? Especially the P60/70.
Ok, but careful attention is needed to the linkage geometry, specially if you are using servos around 100 oz/in of torque. The final proof of this is that your transmitter is using about 100% or more of the volume travel on the control channels. (and this includes the mixings, dual rates, etc..) Also if they are digital, they have the advantage of being more resistant to flutter as they have a stronger holding power at neutral as well having metal gears, for the same reason.
Enrique