Years ago Numrich sold real No4T pad sets for, IIRC less than 20 bucks a set. one corner of the front pads had a mark from where the pads were chiseled off the side of the receiver. Should have bought more of those sets.

I used one set to restore a Savage No4T that had the pads removed. Got correct thread form and pitch screws from a Austin Healy/MGB parts house. Screwed/soldered the pads on, the holes on the pads and receiver lined up perfectly.