With out question Kimbers are the best out of the box producion gun. As I mentioned I have a few and love them dearly. I have never seen anyone have a problem with them what so ever.
Wolf im almost certain lazs means 25yards.
AKIron if you are going to get into original 1911's learn and read everything you can. They arent as bad as winchester rifles which I collect also but still can be screwed with, re-blued or made out to be what they are not.
Alot of things changed over the years with the gov't contracted 1911's. Hammers, main spring housings, clips, sights, triggers and just about every external and some internal parts had a variant through out it history of production.
First thing I do when I pick up a 1911 and start looking at it, I pick it apart. Figure out what date it was made, then check to see if it has all of the right parts...
ALSO, get a book that tells you where all of the govn't contracted colts where shipped to. Some when to very important people, and all of them have papers from colt which you can get copies of saying so. If you get one that went to a important govn't official, it will be worth much more than one that was just crated up and shipped to the armory ect. Hope that makes sence.