Thanks again for your response; I've tried looking up contact information for the museum in Switzerland or curator contacts to no avail. Additionally, trying to find contact information for Santiago DeTomaso has proven fruitless. I see now why uncovering the history for these cars may be like searching for the lost Ark of the Covenant haha.
As for the registry, I was able to find information that was already known; I am hopeful that eventually I may be able to come across the original build sheet, which would be an excellent find.
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