I don’t know if this is what you are looking for, but I'm going to put it out there…
I would be interested in seeing and/or working on a flying wing.
I think the only Northrop is a N9M... I am not aware of any others. I think the only N1M is a static display at the Smithsonian. I believe that all of the YB/XB-35’s and YB-49’s were destroyed, I believe that Edwards AFB is named after the pilot that crashed a YB-49.
XP-56 replica would be an interesting project. It looks a lot like an EZ, and many of the technical problems like countra-rotating props and yaw control are not as complex as they were in 1940.
I am always amazed at the progress and vision in these early stealthy planes. I would bet that most people are unaware of the long history of flying wings and that they assume that the B2 is “all new” technology.