Much appreciated. Found a couple other options in the last few days. One specialty custom & rod glass shop says with my back glass in hand, they can cut one out of a windshield they physically match to for $800, plus shipping both ways.
Another custom shop can duplicate mine in scratch resistant acrylic for about the same, ditto on the 2 way shipping. Both West coast, me midwest.
Those are the best numbers so far, so if I found one with shipping one way, that leave's me a lot of room to gladly pay a premium price.
Right now I'm on the upholstery guys work list for a headliner, after that I can put glass in.