It would help to see some pictures. There is a direct correlation between the amount of help you will receive and the quantity/quality of the pictures you post!
So you're asking if, speaking in general terms, it's nice to buy Constellation ref 14393s which work? I can tell you the forum consensus on the latter is "yes." Does that help you?
No price. No idea of condition. No pictures to verify it's authentic, original, correct, or otherwise. Conclusion: Sure! It's a great buy! Get a second and third mortgage to pay for it! *opinions expressed in this post are not those of Omega Forum's management and not to be taken seriously because of their sarcastic nature.
Well for starters case ref. 14393 came from the factory with a cal. 561 not a 551 movement so if your numbers are right, it's a franken off the bat even before seeing any photos.