Nothing wrong with a basic 1911. I'm not familiar with the Ruger, except to note that it has a cast frame and slide, rather than forged and the internals are MIM parts. The OP said that he already had basic 1911's, but was looking at getting a 1911 "tuned for accuracy". There is a big difference between basic 1911's and accurized ones and the higher price reflects the extra work, trigger job, tool steel internals, match barrel and bushing and forged slide and frames. Many years ago, I bought a brand new series 70 Colt Gold Cup National Match pistol. Although reliable, the trigger wasn't up to the hype of "Match" that Colt stamped on the slide. I had a trigger job done. Not only the substandard trigger pull, but the accuracy wasn't what a match pistol should have been. When my skill began to exceed the gun's accuracy, I ordered a Clark Custom accurized Colt 1911 from Jim Clark, Sr. I still have it. It lacks nothing and is so far above the quality of any factory pistol that says "Match" or "Trophy' on the slide, that there is no comparison. As I said in an earlier post, I have a Springfield Armory Trophy Match. After replacing the internals with Cylinder and Slide tool steel parts (read trigger job) and fitting a Wilson bushing to the barrel, it is a decent pistol, but still not up to the quality of the Clark Custom. I cannot speak for the quality of work at Clark Custom the last couple of decades. So yep, bare bones stock 1911's have their place, but the OP was asking about 1911's "tuned for accuracy".
I read his question as "a good American made 1911 that could be tuned up". Re-reading the original post I see that the post is asking for an out-of-the-box professionally tuned 1911.