New guy from Wi. I've visited this site in the past and there is a lot of knowledge here, Thanks! Recently a friend of mine decided to sell his collection of firearms which include a few HK's. I have never owned one, but I have the opportunity to purchase those I would like. One in particular is a P7M8.In excellent condition, it is in a box that is numbered to the gun, some tools, a test target, 3 extra mags and the original receipt when purchased. I see the prices for these are pretty varied and I would like to get some info from the pros before I decide. Are there more desirable versions? etc. Thanks for any help!