I get mine from Cal-ranch. A lil ways away from you but they have good ones. I think only individuals, havnt seen a complete set.
taps and dies are one of the things that I personally can't justify buying cheap;HF.
Having one break off in a hole or go dull prematurely would make it worth it IMO to buy better ones. But the great sets are $$$. I only have been buyin individually when the need arises.
Fastenal carries the really, really good ones.