Good you found a tap. There is a company called Victory Machinery Exchange in Brooklyn (they have a website) that carries lots of oddball taps and dies of all sizes. And they will make anything you want if they don't have it. But that would probably be very expensive. I have bought several non-standard items from them, but not recently.
Thanks for the info. Tapsanddies.com had everything I needed except one, 6 taps and 4 drill bits, 100.90. What can you do , you need them. Only one was 43.00, so the rest weren't to bad.