Don't know about prices in the UKbut in the U.S. and A., depending on quality of a real original M41/b, one would expect 2000-3500. Oddly, someone on GB recently bought one for 7k, although no one who watched the auction believes the sale will go through. For a mock up swedish sniper..... sum of the parts, the ajack scope and mount, if real, would be 1500$ plus. the rifle would be 500$. The gunsmithing work is whatever he says it is but can be negotiated. I just found one of these for someone a few months ago and it was 850 bucks... not a real ajack or mount but weaver and accumounts mount. shoots well. I personally would not like a made up M41/b, but if you can't find one, it would be better than nothing. andy