I can provide some good information on the Appalachian Trail. We have a group the has been walking the AT in sections since 2014, we have walked as far as Pennsylvania from Amicalola Falls. We have done 5, 7, and 10 days at a time, and like anyone who has hiked the Appalachian Trail (is NO Camino) it is not an easy trail even in the easiest sections! I have done a lot of research, have books and maps. Just for information the two hardest states out of the 14 you will be hiking are Georgia and Maine, even though Pennsylvania doesn’t stay behind. If you do a thru hike you’re possibly looking at 4 pairs of boots or trail runners, I personally tried both and like the boots better on rocky terrain and there’s plenty of that. A thru hiker normally starts at the end of February if going northbound (NOBO). You will encounter snow, and really bad storms, even in May due to the altitude of some areas. You will need someone as your logistical person to send you stuff when needed, like swapping cold clothing for summer, and then again for fall. Depending on how fast you hike, usually it takes from February to August to reach the summit of Katahdin. There’s also rules and permits to be obtained in certain areas like Smokey Mountains NP and to summit Katahdin, they maybe more in place now, since things have changed. (Like camping on top of Max Patch) there are several options besides a thru hike, Section Hiking, and Flip-Flopping. Lots of people do the flip-flop now to avoid crowds and take advantage of good weather. This is just an overview if you have any questions and I can help just let me know! HAPPY HIKING AND MUST IMPORTANT “LEAVE NO TRACE!”