Second post so I can say welcome again.
This is the only schematic I have seen. It was once on Guild's web site and I think I have a PDF version somewhere if you PM me an email address. My guess is that it is for a Starfire bass II that predates mid-1967 because it lacks the "bass boost".
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The body was mahogany or maple and I think the necks were mahogany. You probably could start with the wood and dimensions
here.
I have no idea how to find out whether Fender would share the information from the 90's reissue.
You might get someone here to measure theirs for you or someone may already have the info on file.
You probably need to be better at internet searches than I am but in one of the iterations of The Dude Pit there was a European named Marko who crafted replacement brass bridges and at least one or two basses. There might be someone at LTG who knows how to contact him.