OK Jerry...here's a quick grab from the 'archives'...during the construction process when the bits were on my bench ...
pics show the 1mm steel main 'baseplate' that I made to go between the BPP and the face of the Tele body (it has the brass threaded block underneath the butt-end edge)..
The chopped out rough (since cleaned up!) cutout in the edge of the Tele body to accommodate the brass block.
The end-plate that wraps around the butt-end of the BPP mainframe and continues down over the edge of the Tele body to pick up the strap button (and subsequently two extra woodscrews..one either side of the button ala Hipshot.
The unit assembled on the guitar, and another shot to show the 'matching' jackplug plate that holds the 1/4" jack and the Roland 13-pin synth socket..hence the engraved lines on it and the BPP endplate to carry the 'theme' around the edge of the guitar..
HTH...
Happy to send more detailed info if you want to build one, but you will definitely need a lot more bandwidth than available here

...I took a swag of photos during the build..this is only the tip of the iceberg...
...and is it a fun guitar?? YES!!!!!
...but I'm still only just learning how to play it with all the other things happening around me at the moment....
Cheers from almost Springtime Oz..