So, I was digging through the source code of the SNES version of Super Noah's Ark 3D (it leaked last year, only found out very recently).
However, I noticed that despite the modifications made, most, if not all of the original Wolfenstein 3D code exists, albeit behind ifdefs.
So, I've spent the past few days working at it, and I've managed to get it to assemble via WDCTools to more-or-less what's in the original ROM. Several bytes have changed, and it is missing all data and things such as SPC700 drivers, but I am excited nonetheless.