I just purchased and received a Schmidt Rubin K11 from Intersurplus. The rifle I received was exactly as described and I was extremely satisfied. 1918 manufacture, very good bore, all original matching. It took a little time and patience to view all the K11's on their site until I found the one that was right.
Their website was easy to navigate, the quality/quantity and detail of the photos was satisfying, which made making my final choice easy. Shipping was very reasonable and quick. It arrived securely packaged and padded to prevent damage during shipping ( I think we've all received rifles that have been tossed in a box and arrive with the bolt handle sticking out of the box!). It's that kind of attention to detail that makes me a satisfied customer.
Guarantee you I'll buy from them again. Cheers.