You might be out of luck
View attachment 566821
..from the base to the cable hole, the Dura-Ace mount measures 10mm, ^your shifters look more like 4/5mm over the same distance.
I’ve got some silver Paul mounts. Currently have 7700 Dura Ace shifters on them but I’d sell the mounts on their own.
If there’s any doubts on compatibility, I can post them out and just send them back if they don’t work.