Hi Jack...Man you are moving right along...My neighbors Jazz measures a tad under 1 5/8. Around 1.600 (I didn't want to mark up the paint
You already beat me to the control cavity move! Did you notice that the bottom of the pickguard is about 1/8 lower in the screw areas? It actually comes a good distance below center on the control plate!
Here's a 1:1 pdf I did this morning. Take a look. If you or anyone else can use the dwg or dxf, PM me and I'll send it along. I don't have the web page that I used to host my files on anymore (they are keeping the ones I had on there for the 53 build a little longer) so I can't link them yet.
OOPS...forgot the string through holes on the back!!