UPDATE!!
So. Brought home the La Scalas last night and the seller in fact was wrong. They were from 1979 with corresponding serial numbers and all original horns and AA crossover networks. Traded him my Heresy I’s and gave him some cash to complete the deal. They sound incredible. I’m not sure I want to mess with the original internals, but everything i am reading says that new tweeters and new crossovers would be the way to go. Does anyone have any opinion on the aftermarket ALK crossovers as opposed to the Crites?