I think you are reading too much into the different color hose. It appears to be using up old stock rather then a different color for inlet or outlet. I actually don't have a Marti report on that car (owned for over 30 years) but should get one . I have gotten a idea of build date based on other cars around the same number that have gotten a Marti ..................
Remember (assuming that it is one of your Shelby's) that the finish date at San Jose is listed in the latest registry
Sorry guys been away again for a couple of days so catching up on threads and responses