Altec Lansing Model 19

After a loooooong research I found them! 10/10 condition cabinet drivers grills everithing is brend new, the owner (first and only) has reassured me they are perfect and I can tell you he is right!! not easy to get them here in Europe.
QUESTION, I want to drive them with the best amplification from the 70s!! nothing like nowadays elettronics, possibly one box amp!
Thanks for the help!