It's a Swinger, I got the plans from Cooterfinger (thank you!)
The original concept started with the humbucker I took out of my red Bronco.
I read that Jimmy Page had a Swinger with a humbucker fitted in the middle position.
The neck is from a Squier Jagmaster with a hacked down headstock (it has the right number of frets for a Swinger).
I will admit the headstock isn't perfect.

I cut up a pickguard from a previous project to patch the hole from the humbucker.

It still needs a tweak om the truss rod and some screws and it wil be a guitar.
I might be digging some more projects out of their graves soon(ish)...