I don't know which airport is closest to Erwin, TN. I mapped out a route from Greeneville, TN (KGCY) to Rome, GA (KRMG) to Montgomery (KMGM). KGCY - KRMG is 184 nm each way, and KRMG - KMGM is 158 nm each way. It may be easier to split the run in half using two pilots.
Unfortunately, my availability is limited for the next few weekends. Hopefully some of the other Southeast Region pilots can get together and help.
My range is about a 250 mile radius around Houston, Texas. Roughly that would include any field within an arc from Houma, LA (KHUM) to Monroe, LA (KMLU) to Paris, TX (KPRX) to Brady, TX (KBBD) to Carrizo Springs, TX (KCZT) to Brownsville, TX (KBRO).