I installed a wood support bracket similar to what Tom did and I also used the mast that Jim used.
The wood bracket that I installed was gusseted to the closet false rib and the closest wing rib. Then I build a modified false rib support under the wood bracket to make sure I didn't get any flexing or vibrations when flying.
From the picture you can see that I routered out the shape of the mast in the wood bracket. The mast is welded to a metal plate with 8 holes for mounting the mast to the intended mounting bracket. There was a weld bead on the part of the mast that would be connecting to my wood bracket so the routered out area was an area that the bead would fit into and allow the pitot mast/bracket to fit flat up against my wood bracket.
I predrilled two holes in the wood bracket to make a place for the two aluminum tubes from the Dynon AOA pitot. In the back side of the wood bracket I drilled and expoxied in screw anchor nuts which allowed me to connect the AOA pitot with 8 removeable screws.
I then build wood anchor brackets in each rib to hold and support the nylon tubes that go through the wing assembly and connect to the pitot and AOA ports on the Dynon instrument.
In one of the pictures you can see that the nylon lines run down the spar so as to enter the cabin. These line are wrapped in an automotive type plastic conduit.
Note I also installed an acess port in the wing covering so that I can service the Pitot or it's connections if I needed in the future.