$800 (US dollars I assume we are talking here) is about right for a NIB P5. I have the P5C & have been very happy with it. It is closely related to the P-38 & take down is essentially the same. I would say get it.
Now that THAT'S over...come on over to www.parkcitiestactical.com and visit "The Cult of the P7". There's a lot of good information there from time-to-time. I'm a new P7M8 owner, myself; I'm always learning something new about it from the "experts".