Randall's M1911. It's a little hard on magazines (those damned cracks on the magazine lips), but this gun is made to be abused. Excellent aircraft stainless (no galling). It's survived for weeks without a proper cleaning; through sand with a salt water rinses, cold weather, and desert conditions with an occasional dry swab.
Full length spring guide, nice stock sights.
If are persisternt, you may be able to find one. They made made several variants (LeMay model, lefties...), too.
Here's a link to the
M1911.Org Randall page