I too really like the Model 27 guns by S & W. In fact I liked them enough to sell a Colt (actually several Colts, incl Python, 1942 1911A1, and others) just to fund my growing curiosity with S&W higher end wheel guns many years ago. I have a 27-2, 3.5" blue (1976), and a 27-2, 6" Nickel (1980), but my personal favorite is the "Pre 27", 6-1/2", blue, w/ short action, high speed hammer, diamond Magna's, Letters shipped to New York, October 16, 1952.
I have heard it said among Collectors (don't remember where or when) that the Pre-27 is second only to RM/Non-RM of earlier eras in high end desirability when talking Smith's.
The pre-27 was only manufactured 1947 to 1957 so any barrel length is desired if and when I find them.
Congrats OP on finding that one, especially when going to look over Mil-surp!