In the few Wild Bunch type matches I have shot so far, I have used my very nice 1914-production WWI-Canadian-purchase Commercial model .... see first pic below .... but, as you may imagine, I have been cringing somewhat while doing so.
I have been wanting to get a plain-jane mil-spec 1911 clone for such shooting. Up here in Canada, the best choice for an economical pistol would be a Norinco, the mil-spec version of which is available new for Can$350 or so! The downside of a Norinco is that I wouldn't be able to to get it into the U.S., as they are disallowed by the ATF on import permit.
I recently learned of another relatively inexpensive make of mil-spec 1911A1 clone, the "Regent" .... which is manufactured in Turkey and imported into North America by IAC. I did some checking online, and user-reports have been pretty favorable. Yesterday, I broke down and bought one .... see the second pic below (which is a "stock" photo, although my pistol looks just like it.)
Haven't taken any photos of mine, nor have I had an opportunity to fire it ..... though I expect to correct that deficiency on Friday. I will undoubtedly want to substitute a flat mainspring housing, and will eventually put on some nicer grips.
These pistols are available in the US from several online dealers in the US$400 price range.