Both Jesse and Randy Sizemore had what we sometimes refer to as the "Roadster pan" for sale. This is the narrow bottom type that was sold as an accessory as part of Fords's 1964 "Cobra Kit" program. It was not installed in production.
I do not recall seeing Jesse's wide bottom or "T" pan, but that may be just me not remembering everything I looked at. That is the production installed pan for the '65/6 GT350.