Don't know Scott Instrument folks. Give D&M Restorations (Mike and Diane Freeman) a call in Greenville, S.C. He has done this for years. Once had a business up in Ma. or N.J. I think. Came south to play golf. He does excellent work as I have guages he worked on 8 years ago still doing/working good. His # is 1-800-722-0854 or 864-421-9959
