Mikechri the tourque rod system will work fine but there is a little easier way to do this and that is to make like a crank end on a wire that will be inserted in the proper hole of the servo arm. then make a couple of bearing plates then to the control serface. The servo will lay flate in the thickest part of the wing facing the control serface. This will work just fine I'm doing the same thing on my 1/5 scale P-47. Have already done it to the tail feathers and they are working just fine and look good too.