Using Tassieaxeman's link. There's no resizing needed if you do it like this:
Go here: https://www.electricherald.com/gibso...itar-template/
Scroll down to "Body & Headstock"
Download the PDF to your hard drive
Open the PDF in Adobe Acrobat Reader
Move the document around the headstock is positioned completely in the viewer
Go into "Print"
Set the following in the printer window:
Under "Pages to Print" tick More Options > Current View
Under "Page Size & Handling" tick Actual Size
Now hit Print
It will print out the headstock shape in full scale. Done!