I used the sullivan tailwheel just like rocketman did. I took a square file and turned it on its side and filed a small channel in the tailwheel bracket to allow for the space. No problems with mine yet either. On the antenae, mine just dangles out of the back and I have had no problems with it catching in the wheel. I did use a cut up servo arm with it threaded through to hold it in place. I put one in the servo tray area and where the antenae exits the bottom of the fuselage.

BTW: I also ditched the nyrods for 2-56 steel ones. I used the nyrod sleeves to help keep the 2-56 rods straight. I have a 4*60 that had nyrods in it and I got tired of retrimming the plane as the temperature changed. They have also been converted to steel pushrods.