I have just seen the first US catalogue listings for the "new" Cyklon X, mentioned last year or so -- Poseidon having paired one of their MK3 Xstream firsts; having cranked the IP, "not to 10, but 11" bar (a la Spinal Tap); added a Cyklon second stage; and swapped out nitrile o-rings for EAN and O2 use -- all, at the low, low list price of US 1000.00!
It's a bit late to the game.
Here's my own Cyklon uh, "9.5," whose first stage dates from 2006; and whose second, from the mid-1970s; has worked beautifully, since that time; and doesn't even look half-bad . . .