Here is another choice for gauge repair I have used a few times for both British & Veglia ,,,, Andrew Taylor of SMITHSWERK in Carson, Iowa. He presently will be repairing my LeMans gauge I sent him . He also converted KPH to MPH for me on my Nuovo Falcone and a 1950's Norton single. Very happy with his work.
I have also used Joel Levine in the past.
andrew@smithswerk.com
He has had a vendor spot at the Davenport, IA swap meet for a few years now. Give him a call 712-746-7450