Pic 1 shows the general layout of equipment. The glass fibre board frames attach to the metal heli side frames using existing holes in the metal. This view shows the rake angle of the shaft in relation to the keel tube (datum) 8 degrees.
Halfway up the GF frames 6mm holes were drilled, 6mm CF tube cyanoed in to provide a base for another horizontal GF board between the sides. This board houses the 2 ESC's and the RX (underneath) also seen here is the butchery to fit the motor mount
The bottom of the GF side frames are drilled to take the 8mm axle support. The 6mm axle slides into that and is cyanoed. the two cyclic servos can be seen in this pic too
Pic 2 shows the minimum heritage tailplane
Pic 3 shows the motor and amount of offset
Link for 4 blade head