you're welcome! i never tried to use it on fallout 3 though, i don't even know if there is a fallout 3 version, in the worst scenario you can try using geck to swap models.
feral ghouls seems to be a bit glitchy (even in new vegas but there is some patches for that if that's an issue to you. i think you'll find those patches in nexus) and the mod can impact performance a bit, i haven't run into any issues to be honest, but i've seen some people complain about it.
oh, and i don't think fallout 4 retexture mods affect upgrades from the commonwealth, feel free to try though.
happy gaming!