If you are looking for "The 45 Look", but not necessarily a period piece, there are a couple of alternatives you may want to look into. First one is my personal favorite-the Star Model P which is Superbly well made and tight as a drum. They were made in Spain. A 9mm version of this same gun was actually issued for 2 years to German troops in WWII and was very coveted by the soldiers, but the big sledgehammer 45 ACP version-the Model P-was always my first choice. If you shake a Remington or a Colt 1911A1 in your hand, it sounds like it's full of BB's, but the Star is solid and excellent, with no such shake. Another Spanish produced piece you might want to see is the Llama 45ACP. Another Very High Quality 45ACP. Both the Star and the Llama have the "Look" that you're seeking and are considerably less pricey than an actual WWII issue 1911A1 and you don't have to worry about firing them, as they are not special collectors pieces. The 2 Spanish firms have Amazing quality. The Star Model P also has the added "Plus", in my opinion, of not having the annoying Grip safety! I've owned both over the years and absolutely recommend either one. Avoid the South American crap, though, like the Argentine Ballister Molina, etc.
"Much that once was, is lost. For none now live who remember it."