Congrats on your model 64!
I had been searching for a nice model 66 2.5 inch bbl for some time with no luck. I had an opportunity to buy a very nice 64-2 with 2 inch bbl for a decent price and jumped on it. No box, but had been fired very little, no wear on the recoil plate at all. Did not have the stock grips but I had a nice pair of Hogue smooth wood combats to go on it and have been very happy with it.