That gear is ALMOST like the one in the TA01/02. The teeth are the same, but the inner gear is longer, and there is a bevel on the otherside. You could cut some off the inner one, but I dunno what to do about the bearing hole.
Here ya go:
http://www3.towerhobbies.com/cgi-bin...?&I=LXGK13&P=Z