After more than a few attempts at fitting the lower rudder tip, I managed to get it to "fit." I had to cut the front more than I wanted to get the tip to fit over the rudder spar. There is about 3/8" of layup that will need to be done to have it fit correctly on the spar.
However, the top of the forward part of the tip interferes with the rudder travel. It is pinched between the rudder and the aft skin of the fuselage. I could just cut the tip off, but I am concerned about the strength of the tip. Time to think this over.