Positively no affiliation -- please do your own research. Advertised on Phoenix CL, probably elsewhere also. I don't know how competitive a price this is. Good photos in listing.
https://phoenix.craigslist.org/evl/ele/d/altec-lansing-vintage-duplex/6654525789.html
Altec Lansing Vintage Duplex 605B & 604A Speakers & Cabinets - $998
https://phoenix.craigslist.org/evl/ele/d/altec-lansing-vintage-duplex/6654525789.html
Altec Lansing Vintage Duplex 605B & 604A Speakers & Cabinets - $998