First off davo...
Let me school you some...
A P-Pump and a "Sigma Pump" are two completely different animals.You will get a stout P7100 from Mark at CDS from anywhere from $2,000 and up,depending on if you want a 12mm or 13mm and what CC's you want.

Now if you want a "Sigma" pump...
Then you better be prepared to open up that wallet and spend some big coin as they start at around $10,000 and go up accordingly.Here is the pricing on the Sigma's...
Sigma Pump

I know what I am talking about with their pumps and have the reciepts to show it......Andy