Ok.... I have searched and came up with a few "kinda" answers, maybe you guys can direct me better.

A buddy of mine and myself would like to do a large chunk possibly 3 days worth of the GAP and C&O canal camping along the way and buying food supplies were needed to minimize the load. We both have carbon Trek Domane's a 4.5 and 5.2. Other then the Arkel rear rack is there any other options for us, I am not sure if we have carbon dropouts or not that would allow us to use a rear skewer mounted rack.

We would chance the tires out for 28's with a mild tread, and be using handlebar bags as well as some kind of rear rack.....If this trip doable on these bikes?

Sorry if the questions are redundant.....We are both familiar with road cycling and riding centuries, just new to this touring thing especially on a dirt road. Any help or guidance would be very much appreciated. Thank you