I don't really know but in my minds eye, I see someplace like a library, or museum that has a display of NASA's history. I mention a library because sometimes they like to have models for their displays. Whatever it would be, it should be out there for others to enjoy. In my opinion, it is worthy of it. Really nice work. If you do find a home for it, please let us know. I would love to hear about it.
Maybe someone-else here will have some ideas.