Actually THIS is the perfect example of the need to get these dumped!
I bought a Fire Trap PCB to get the 8751 dumped and during the process the chip developed cracks in the die and resulted in no useful dump. This is a chance we have to take, they don't call them protection devices for no reason.
Fortunately, TeamEurope has refined their process to decap the "gold window top" versions we have a viable we to get these version dumped.
So the good news: I can program a 89C51 replacement and get my donner PCB up and running so we can try to recoup some of the cost. Then we can recycle those funds back into something MAME related.