You can get a base model Dlask for $1250. I suspect that, it being a product of a custom shop, that a little more care goes into putting them together than the average mass-produced 1911. I would try and see if I could get one without the front slide serrations and with a GI guide rod.
+1 on an older Colt. If it's a Series 70, I would recommend replacing the collet barrel bushing with a regular one. Even the new Colts generally have the best quality small parts of the mid-range production 1911s.
If you don't mid paying a little extra, the Dan Wesson RZ-45 Heritage is nice.
Personally, I don't particularly care for Kimber 1911s. I don't like the looks of their slide serrations, they have a mixed reputation, and I don't like the style of firing pin block.