Restoring a buildsheet and inspection sheet

[Ngtflyr]

Unfortunately I haven't had much success finding an outfit that will take it on. My 69z gas tank buildsheet is very deteriorated, in multiple pieces, and has blackened over time to an unreadable state for most it. I know it can be done, museums restore documents all the time, I figure that is the most likely avenue. Just got to find the right guy. I even contacted a place in NYC that does document restoration and even has a Shelby Cobra buildsheet as an example. They weren't interested in tackling my problem. If anyone has any leads I would be very appreciative.