Dear @broockies: First than all no single AT manufactured cartridge comes with that number 2 in stylus holder but Signet cartridge model ( Signet was part of the AT group. ) that comes with the symbol of A That's a TK7 and the top of the line was the TK7SU.
Anyway, you can send to Andy whom can tell you if it's worth to fix it:
http://www.phonocartridgeretipping.com/contact.html It was a good performer in its time. You said the stylus is worn. Why not make a test: cleanse the stylus tipand listen an LP and decide about/what to do. If the cantilever is not straigth this could be not a severe problem that impedes to listen it. In these ways you can know at least how great is that stylus worn and if both cartridge channels are in fine condition.
Regards and enjoy the MUSIC NOT DISTORTIONS,
R.
@boxer12, I always say that each single day is a learning day for all of us.