@hikebikefun  I lived in south central Pa for a while and section hiked parts of the AT in pa and md. Doing the entire trail would be amazing. I actually Earl Shafer who was the first person to do the AT at a rendezvous. He was a unique individual. 
I LOVE the Tuscarora trail....nowhere near as well known but equally if not more beautiful. 
the trans American bike ride sounds Incredible!!!