If it works to any degree and you know, or know someone who knows, how to do some basic board work you could easily turn the main board into a tri-region board. This one looks to have the tracings for PAL timings. You need only one capacitor, two resistors, a crystal oscillator, two MOS controllers, and an nec 7 series cpu. All dirt cheap. Oh, and a bunch of raw nickel spool to make the contact jumps. The only place you’ need outside help is adding the code to the co primary controller, the nec 3 series on B. It’s not erasable but there’s usually enough room on it to add the assembly as a patch. The code can be grabbed from AV Forum, Doom 9 etc.
With the effort a working multi-format Beta board with stereo (II/III) can run $25-$50 on eBay. The parts complete cost under $5. A small computer shop will probably charge you $10 or so to dump the code from a usb to the controller.
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