@oldcars: Did you ever think about commissioning your own design frameset? There are a lot of really talented custom frame builders in the US and I'm sure that many of them would be excited to built you your "dream cruiser".
The builder that is on the top of my list is Curtis Inglis. He is incredibly talented and an excellent eye for design!
https://ingliscycles.com/retrotec/
The way I would go about it "if I were in your shoes" would be start collecting photos of bikes that you like and make notes what part of the bike you like & not like. Then once you accumulated enough "info", pare down to group of photos and send them with the notes to a couple of builders and wait for their feedback. I wouldn't worry about geometry, because any builder "worth their salt" should/ could take care of that for you.
Also, let me apologize for turning your thread into a "pissing contest". There a few members on CABE that REALLY don't like me or my opinion ( one in particular)!