If you have direct experience with these speakers, I would highly value your thoughts
Yeah, about 40 years of experience with my first pair of speakers being KLH 17’s.
I agree 100% with akg_ca’s post above. Why vintage speakers? Of all the components from the so called golden age of HiFi in the 70’s, speakers by far have come along the farthest. A vintage speaker is the last component I would want in my current system. Besides you haven’t told us what amp you have and vintage speakers, especially sealed ones, were fairly inefficient back in the day. You will find far better sound looking at todays offerings.
But if this is nostalgia or styling thing, then you may want to look at the some of the DIY kits being offered with modern drivers based on classics from yesteryear like the Dynaco A25. Good luck.
I love the above vintage wine analogy!