Kevin, just an aside, if you do visit Walt at Conn Custom, the building he is in was at one time a Studebaker dealership, might have been owned by his grandfather, but not sure. The family lived in the house next to the facility.
If you desire or are required by the insurance company to get another opinion/estimate another excellent shop in Enfield is Enfield Auto Restoration. They worked on my AMX and I would definitely returm. However, do not know if they have expertise with fiberglass.
http://enfieldautorestoration.com/
http://www.enfieldautorestoration.com/location/
Jon Abrahamson is the owner