FYI: When talking with Mike from Chugger he said that their will be new pumps April.
I don't know how many SS heads they had laying around, but I do know they were completely out of Chugger pumps when I asked. He said that if I ordered a March 809 from phelpsbrew on e-bay he'd give me the SS head for free.
For the pump alone at $122 that's a good price, then add free shipping and it's a hell of a deal. I couldn't pass it up when the SS head was offered too.