I have three Aztecs and each and every backglass is in poor condition. It’s nice to see such a nice backglass! That is a huge ‘plus’ you have in your favor.
I would think you could sell it for $500 to $600 but list it for $50 more than you want to get. Everyone likes a bargain.
I’ve seen quite a few Aztecs listed for $700, but they tend to sit unsold for a long time.
It appears to me that the flippers should be adjusted downwards just a tad, but I can’t be certain from a picture.
Oh, one more thing. Those lamps in the back box look like they are blackened. Replace those immediately with new #47 lamps! Blackened lamps run hot and can damage the ink on the backglass.