Since the barrel hook had been welded, and welding would be required to repair the buffing wheel damaged areas, I did not replace the hinge pin in this gun. I welded and refit the hook properly, blacked the barrels down, made new screws and reblued the barrels and triggerguard correctly. I also made a new forend and "raised" the wood before refinishing, recheckering (in the correct flat-topped pattern) and fitting a NOS Hawkins recoil pad. There are reproduction Hawkins pads but they are far too big to actually use on most guns.
Below are the before and after photos.