I decided to go with a two piece removable (plug in) horizontal stabilizer and an integral fin. The vertical fin's rear spar was replaced with a longer one that extends down to the bottom of the fuse, sandwiched by the two large triangular gussets that form the aft end of the fuselage sides. This should make for a fairly strong vertical fin.

To make the plug in system, I used two 3/8" brass tubes in the fuselage to locate the wood dowels at the horizontal stabilizer's leading edge and rear spar. The stabilizer halves slide together on a load bearing 1/8" steel rod sleeved inside 1/8" brass tubes.

The kit/plans call for wood dowels to simulate the scale tail bracing. I replaced this system with functional bracing wire made from 2-56 treaded (on one end) rod, both threaded and solder-on clevises and small brass tabs. The brass tabs are bolted through hardwood dowels that have been flush mounted in the stab/fin frames. The threaded clevis on each brace segment allows for adjustment.

The tail bracing provides the necessary tension to compress the two stabilizer halves together against the fuselage. The off-set geometry of the brace wires keeps the stabilizer snugly plugged into the fuse by preventing the stabilizers from swinging forward or backwards.

A standard servo (center) drives the rudder with a pull-pull cable system. Two more standard servos, one on each side, drive the elevator halves. A Dave Brown fiberglass pushrod fitted with a 4-40 rod runs straight from each elevator servo to its respective elevator half on the opposite side of the fuse. The elevator servos are mounted at different heights to allow the pushrods to cross without interfering.