So that turbo just came in a few weeks ago for $1415 +-$50 or so. It is good for 160 HP at 25,000 feet. I'm sure you can get one too. Call 'em and ask for Dick Vincent, very helpful guy.  

 Marko, I forgot to ask- does this guy know it's for a plane?   For any parts that unrelated to altitude considerations, I typically say that it's for an offshore racing boat, since they also use high power for long durations.  It's pretty hard to discuss turbo-normalizing a boat though :-)