I've done a search for this and can't find anything. Does noone make a simple replacement for the G25 brake pedal to make it stick out to the right more, for heel-toe? The pedals are bolted on so it would be an easy replacement.
Moving the brake pedal somehow makes me feel uncomfortable. It means when you brake you not only exert a force on the pedal, but also a torque that twists it toward the gas pedal side. The original hinge probably wasn't designed to take twisting torques like that.
And considering the brake springs are the hardest... I would move the gas pedal toward the brake instead. Or only the lower part of it rotated to the left a bit. Combined with some spacers under the brake pedal it should be fine.