I'm also in the throes of a "refurbishment" of an early (12C) GT-37 that is the opposite of yours when it comes to the option list. It's Canyon Copper with white guts and the red/white 'eyebrow' stripes. I have a thread on it that...
https://forums.maxperformanceinc.com...d.php?t=790693
I'll be watching your progress with interest!
Dennis