Not sure if the offer is still open, but libgcc14 would be greatly appreciated. Trying to install py310-numpy which unfortunately relies on that, seems all other dependencies are there though(looking at compile times, libgcc14 looks like a nightmare for my G4)
EDIT: didn't realize you're using a G4 1.67 as well! If you happen to have the package available/can upload it, otherwise I can build it. Strongly considering snagging a G5 now LOL
There are no reasons for numpy not to build with gcc13, if you have that one. Just install it as py310-numpy +gcc13.