Well, for what it's worth, I tried to isolate some traces. Green is metal where there is nothing underneath, white is where there is something underneath (or where I simply didn't do anything). I have no idea which components are which and whether this is useful, but I guess you could add it to your docs.
It looks like you traced out most of the VDD and GND major traces at least. I have somewhere an XCF where I was trying to do this on layers. I don't have GIMP on this machine, so I can't really look at the XCF files right now.
I do have some other images where I at least identified some major structures, such as some counters, a decoder PLA I never fully understood, the program counter and single-level return pointer. Also, all of the pads are labeled with their pin numbers and names as I recall.
I also did visually verify that the ROM is the 012 ROM. IIRC, it has an 8:1 interleave, although that's all just based on memory at this point. (By 8:1 interleave, I mean every 8th bit in the ROM array is part of the same byte. This is common in RAM and ROM structures.)
And a little off-topic: If any of you reading are 6502 enthusiasts, this recent podcast interview with Bill Mensch is great listening.