Update:
Over lunch today, I went back to my local GS and found I made a mistake, and was confusing two different Series 80 Colts I had been looking at.
The wooden-gripped gun had the plain military-style iron sights, while a second Colt, with Colt rubber grips (with Colt medallion) had the three white-dot sights, which I prefer over the stock plain iron sights.
Long story short, talking over my options with one of the senior GS salesmen, he quoted me a price of
$600 for the rubber-gripped Colt. Same very good shape... a little finish wear on the corners, but the bore is in excellent condition and the action is smooth, good trigger pull.
Thinking things over for a second or two... Colt Series 80 MK IV Government Model, blue finish, enhanced sights, original Colt rubber grips (in good shape), one Colt magazine, but no bushing removal tool (

)... I said "
Sold!" and put down $100. I figure I can replace the grips with Colt wooden grips for about $40, and my Taurus' bushing removal tool should work on the Colt as well.
In IL have to wait 72 hours, and the GS is closed Mondays, so I'll pay the balance and pick it up next Tuesday. In the immortal words of Homer J. Simpson: Woo Hoo! My Taurus PT1911 now has a fraternal twin :mrgreen: !!!