Call me an eBay whore, maybe, but I have no trouble getting NR and SR triples (Not really any diff except for the chain rings) just by watching the auctions. I have gotten four on-topic ones and three off-topic ones in the last three years. There are even a sprinkling of non Campagnolo ons and offs including that super expensive TA everything one that I brought to the list's attention. A month ago there was a non-drilled Campagnolo triple (meaning that it had no extra holes in the arms for the third ring) and there is a special middle ring (made by who?) that carries the third ring. I ride the 6-Gap century and would not be without one plus I'm OLD.
John Redman
Hapeville (Atlanta) GA