im like that most the time just been stressing more lately on getting what i want in that price range where if something happens i can move it with out taking a loss .. i bought a 940 pro 2 years ago every where had none in stock priced around the 900 range bought mine for 1200ish but didn't mind since i wanted it couldn't find it and planned to never sell..
If you look through the completed sales there are a couple under $700. But remember condition and original grips count, plus the shipping and transfer cost.
Model 18-4. Beautiful gun. I would not worry about paying a bit too much if you really did because in a very short period of time that gun will be worth much more than you paid for it. I would be proud to have it in my collection.