Finally bit the bullet and took the plunge and made it mine - not to mix metaphors
I got a Harbor Freight motorcycle carrier and me and the hubs went south about 192 miles to have a looky-look. Not that I was going to walk away empty-scootered. It's got a few battle scars with some not very good touch-up paint work, but that adds character. Thought I might be able to grind the seller down a bit on that and that the seat-release button isn't currently working, but he wouldn't take less than $3k - and that's exactly what I brought with me.
Getting it onto the carrier was a major pain and just as we were backing out of the parking spot the Vespa made a bid for freedom and did a little slidey slide. So we re-did the tie-downs and got the wheel holding pin in the right place after much sweating and swearing. So it's still still sitting in the carrier, waiting for registration, VIN verification and me getting an updated permit. But I've got what I've been wanting for years and I love it!
Now anybody got any advice on the seat latch actuator? That's what the seller thinks is the issue. He's already tried cleaning the contacts and greasing.