How much are you willing to spend? If you have the coin and the time I would take Garthwaite's 1911 class.
http://www.garthwaite.com/services/classes.php
For $3150.00 you get the following. You will end up with a pistol you built that will be Garthwaite quality. If you are not familiar with Mr Garthwaite he is one of the best pistol smiths alive. 2004 Pistolsmith of the year and on the board of the APG, American Pistol Guild.
Tuition Includes:
Quality Forged 1911 Frame/Slide
Kart Match Barrel
Heinie or Novak Fixed front and rear sights
High Sweep Grip Safety
Tool Steel Hammer, Sear, Disconnector, and Trigger
Thumb Safety
Mainspring Housing
All small parts / pins
Matt Bluing
Personal Instruction (see details below)
Personal Instruction:
You will learn my methods of the following:
Bench work
Using Precision Measuring Tools / Instruments -Files / Filing
Using special tools, fixtures, and jigs for the 1911
Frame and slide fitting
Precision Barrel Fitting
Custom Sight Installation
Trigger work -Checkering and Texturing Fundamentals
Teflon Coating / Bluing Application
Malfunction Diagnostics
Range Testing