nesdev.org

I think you just have to put a solder bridge where you cut traces wrong, and remove the wires where you removed wrong wires.

I ask myself if there is NES-TKROM-01 boards with all pins present (as in NES-TSROM-01) gaining all the mess with the battery (just replace it).
Else, I'd still go for a TKROM board and try to glue some contact on the connecotr for the R/W pin, drk144 at least had done this succesully.

Welp, I think I found TKROM-01 in one game. Too bad it's Crystalis. Anyone own this game? Can you check if has a full row of pins on the edge connector?

EDIT: Also check Deja Vu.

Too bad it seems that even TKROM-01 has not all pins on it, according to BootGod.