.45 acp

I think it's time to replace my long gone 1911 with another one
(went to a gun show on sunday, that did it) my old one was a 1914 civilian model that had been re blued and was not all original, functional but not very collectable, so I am looking for a low budget replacement, older is better, pre series 70, functional but not collectable, just a good shooter grade piece, no modern copy's, real colt or government contract piece like a REMINGTON RAND, or arsenal rebuild, what do you think is the cheapest I can expect to find something like this? $250, $350, $450, more? just trying to get an idea of what a good deal might be so when I see one I can grab it, thanks