Didn't have a lot of time this morning. These are great rifles and probably the most accurate of the SwissRifles and all of them are more accurate than most others. This is primarily due to the length of the barrel which gives a superior sight line for aiming. Most people prefer the K11 or K31 because they are shorter and easier to handle. It is also much less common than the other varieties.
Did you check under the butt plate for a name tag?
I paid $400 for mine several years ago when prices were lower. Mine has a matching number bayonet to go with it which is why I paid over "list" at the time. Plus it was all from copper scrap that I turned in the day before so not really out of my pocket.