the landing gear definately needs some attention in the strength department.
hinges, i would suggest the robart hingpoints, or something like that. I dont like CA hinges on any of my 3D models. too risky for me.
as far as servos go, I have hitec high torque metal gear for the rudder, and the karbonite gear high torquers for the rest of the controls. the seem to work just fine.
What are you using for power??