That's about right, price wise. Assuming they are fully functional. But, unless they have been properly gone through by someone recently, they will need at least $2k more invested, to do the inevitable service they will need soon.
FWIW, I had a stacked pair of Quads (similar, though not as nice looking of stand, as those in this add, and minus the Decca tweeters) when the '63s came out, and I sold them immediately to buy the '63s. IMO, and that of Peter Walker, a single '63 is a superior speaker to even a stacked pair of '57s. Stock '63s play louder, and go deeper than a pair of '57s, while taking less space, imaging better, and being much less room sensitive... all that, while running off a single amp! As far as durability, it's not even worth talking about. Walker said it all, when asked in an interview some years later "knowing what you do now, what would you have done differently on the original Quad loudspeaker (esl57)", his reply was "I'd have made the ESL-63".
I do think the original Quad MIGHT have had a slight advantage in mid range clarity, but it's very slight, and that advantage fades even more if you change the grills, and add Arcici stands. I was VERY proud of my stacked '57s at the time, and never though I would trade up from them, but it didn't take a long audition of the '63s to open my eyes. I've never looked back with regret on that change. :thmbsp:
