Kevin, I installed a Flarm Core in a 201 Libelle which should be nearly the same. Initially I placed the two antennas (dipole) on either side of the canopy hold down mechanism about 8 inches apart, on little lexan posts. It looked really cool but worked poorly probably because of some weirdness with the nearby metal in the latch. I then mounted one on either side of the cockpit nose with velcro about the level of my knees. It works great, and has excellent range. Try to stay several inches above the rudder cables.
Dale Bush