I got it to work! Boots up and plays perfectly!
Lift pins 1 and 26 on the 256k sram chip
Solder pin 1 from the sram to SA1 chip pin 87
Solder pin 26 from the sram to SA1 chip pin 103
This Super Mario RPG lives on to play another day! The saves hold fine too!
The ram chips from the pga tour and SMRPG only have two different pins according to the datasheets, so I just wired the 2 pins from the 256k sram chip to where they go according to the super mario RPG PCB. I found out where those 2 pins from the ram were directed to on the SMRPG cart with a multimeter.
Kinda followed in this guys footsteps:
http://www.dbwbp.com/index.php/10-elect ... -snes-cartSo happy I got it to work! hopefully this is useful to someone in the future!