option 1)
http://www.rsguitarworks.net/rsstore/index.php
try this guy, he sells T-Bird reissued pups and he might know the guy we are talking about.
his pups are made by Fralin i think but he might remember the "cover" guy.
option 2)
find the ebay sale of covers for the "three" hole pup covers and weld'em shut ( i would recommend TIG welding), grind, drill two holes and then rechrome.
http://cgi.ebay.com/Vintage-Gibson-N...QQcmdZViewItem
although this might sound like a way too complex problem solver, the "pup cover guy" asks a lot for his covers (LIKE 200+ THE LAST I HEARD) so at $39 a pop, this might be an avenue to ride on. you get the rings, the covers and a minimal charge at a chromers shouldn't go over 35-40 a pop for a small item like a cover. a chromer in Des Moines estimated the cost for me a year ago. i decided to go with a new Dark Star DS2 and have just sold my 71 Bucker (yeah it was engraved "Gibson"), a new EB3 varitone replacement switch and a black TB Plus to pay for the Dark Star and some knock your socks off A+++++ (yeah 5 pluses!!!) wood for my body cap.