The Sig SSE's have similar tailsupport.
In that design you use a metal pushrod with a modified clevis on each side.

Cut the "stick" side off the clevis and only leave the side with the hole.
Solder a clevis on one side och poushrod and thread one on the other side of the pushrod.
Attach through tail surface with a small nut and bolt.

(Hope that was semi-understandable)

os. The Bipe on that picture is absolutely stunning!