I searched the mods and forum as extensively as I could, but apparently, what I am seeking doesn't exist.
When I first played Fallout3, I tried to put Fawkes into a suit of RoboThor armor, just because I thought he'd look interesting in it.
But despite giving him the armor, nothing happened.
I'd like a mod that would enable Fawkes to wear any armor and helmet you hand him, so he's not using his default appearance constantly.
The requirement is the armor and helmet should remap to his body shape, I don't want him to appear to be just another armored human.