There aren't enough affordable true snipers out there. Nothing wrong with creating a clone. It's not the same as "sporterizing" one. For some of my collection, I shoot my clone snipers more often because they are more accurate (built with new barrels) and it keeps the true snipers in that much better condition. If you are getting 1.5 MOA from your existing barrel, don't expect better by changing it.
I had nothing but a receiver that I saved from a sporterized rifle. I used it to build my USMC M1941 sniper. I went with new barrel and new stock because I had to. I did everything myself except that I sent the barreled action off to an experienced gunsmith to have the scope mount bases installed.
It's one of my favorites for shooting, but unfortunately, our local matches allow only 6x maximum on the scope. One of these days, I'll try to get the 6x eyepiece for it. They have them for the Unertyl, but I just have the Malcolm replica and it's probably different.