Robert, I don't know what happened to that #14 car either. I have tried finding Norberto but have not had any luck. You may be right that it did all of its racing down in Florida.
As for the Bill Boye #68 above, I don't know for a fact but have my suspicions that Billy Yuma bought it from him and used it in Nascar GT races. Here is Billy's car at Daytona in 1969. I think the photo was taken at the Citrus 250 race that Don Yenko won in the former Smokey Yunick Camaro. Billy was usually a circle track roundy-round racer. Many of his cars were called "Orange Crate". He passed away several years ago.
Photo by Michael Booth