Okay, so have secured the .jed and .bin files for the various PAL's and GAL's. Here's a rundown of the various parts needed:
U23: MC74HC00
U30: NCR 53C80-40
U25: 74HC688
U24: 74HC573
U26: 74HC688
U27: U27-16v8d25.jed
U21: U21-20v8a.jed
U59: U59-16v8d25.jed
U70: U70-16v8d25.jed
U31: U31-27c256-120.bin
...just need to find someone who can burn those .jed and .bin files now.