Remember that eastern Carolina is filled with rf, if you subscribe to the The Body Electric theories. I remember some commercial blimp manufacturer would bring blimps there to test whether they would fly in high rf environments. They rf crashed a bunch of them.
Is VOA Greenville still pumping out millions of watts? The TV and radio stations used microwave studio transmitter links. I’ll bet they use fiber optics now. So maybe there’s less rf.
I’d still look in Tyrrell County. Just be sure the property is above the high tide level. Be careful on 64.