I use a small cargo net until I need to, have to, or want to wear my helmet. Cargo net hooks to almost any hard points. On a long trip (like you have planned) I definitely would include a full face in case you hit rain. I'm sure you have checked but only TN and NC are the "required" States in your way. I take them along or use a cable lock if I go in somewhere and can't see the bike, if I can (see the bike) I just leave them. At night, either in the tour-pac or in the room. Although a PITA I always take my all weather bike cover. Gets to be a lot doesn't it ! Trip triage is usually good for a two hour argument followed by an evening of silence.
OWL