Drew - Yes, it is the E450.
RJF - Drove through that KOA last year while visiting. It's very close, appeared nice, and likely be where we stay!
Ranger - Well I'm assuming my Florida Sun pass won't work on those tolls ! That will add stop and go time. Do you know how many tolls ?
Do you recall if Beckley had decent gas stations for a newby driving a class C ?
Thanks for all the info, and please add anything else you think of especially on that section of I 64 through the NF toward Staunton.