In case someone is interested in having one, below is the ebay link, or you can DM me for $75 plus shipping. This meant to be true to the original and so the same trace cuts and jumpers plus some extra to make the board to work and be compatible with cassette interface and other modern peripheral cards like P-Lab's MicroSD, Jukebox cards.
https://www.ebay.com/itm/266239514252