Nope, I am sorry but there are no kits. There is Lanier Ultimate Bibe, it is bigger.

I posted this question a year ago and there is no kit for Pitts S-2B.

I also love this plane and want to build one, however no kits.

So ended up buying plans from RCM, I have 2 set of plans one by Nick Zirroli in late 60's and the other is Norm McFarland, if I am not mistaken.

Zirolli Pitts is S1-A the first pitts and smaller than the S2-B, the bw picture is what it is modeled after. "The Little Stinker"

I bought wood for Ziroli pitts but did not have a chance to work on it yet. It is featued in one of the articles also in RCM. If I am not mistaken it was 1969.

But there is Cenmark ARF at this size.