I don’t use Easel and I don’t give my gcode away because the files are specific to my particular set up. There is this… you may have to convert file formats. Copying the Fender peghead is a trademark violation, which is why you probably won’t find one exactly like a tele shape.
https://grabcad.com/library/telecaster-guitar-body-1
https://grabcad.com/library/stonerock-telecaster-neck-1
It appears that there is a tele body Easel file in here:
If you find some time to download a dxf …there’s a nice body and neck in here although they are not 3d models