Here's the set in "finished" form.....
Above all, I wanted the "conversion" to be completely reversible, leaving the original cabinet untouched and just working the BPC guts around it.
The BPC I got is a 24" Symphonic set. Ideally, another inch would have filled out the mask completely, but I worked with what I had.....figuring that this isn't going to be permanent anyway.
After discharging the HV, I cut the bottom of the cabinet out so that I could mount the control board in so that the buttons could be used. The buttons on the board were mounted flat on the board, meaning that I pretty much had to use the face of the unit.
I then bolted the cut out section with the main board on to the side of the BPC cabinet (albeit crudely), and then made a back out of fiberboard and scraps of wood....primarily so that reaching your hand back there wouldn't induce a shock by reaching for something you're not supposed to. And I have cats
Only thing left to do is to desolder the remote sensor and mount it so that it can be accessed through the old channel window, but I might not bother since I use an agile modulator anyway.
Until the guts come my way, I'll enjoy the cabinet just as it is