Signo I have to agree with cougar on this.you could get away with just taking the bottom of the stabs covering off,and cut into the skin at a angle to remove the lower skin inspect and reglue the ribs to the skin.I added some wood at the root and extended the length of the spar one more bay outboard with a plywood rib doubler and replaced the weak stock C/F spar with a real unidirectional C/F spar I bought from CST."the composite store.com".the servo in the tail is a must do also.I also removed 1/4" of the TE of the elev.to reduce the area of the elev.I stripped sanded the TE then recovered them.