Did it twice. First time was a sightseeing kinda tour, took me about 7 months. Carried about 35 lbs. I started at Springer mountain both times and you usually pack too much stuff. You end up dumping or sending back about a quarter of your gear (heavy jacket/coat winter wear) because you just don't want to be humping that stuff. Weather is always the main problem, just have to deal with it.
Second time i went i carried around 20 lbs. and it took me 4-5 months. Much better prepared. 99% of the people you meet on the trail are awesome and don't forget the trail angels (you'll see them along the trail ) they are invaluable. When you get off the trail to go into a town people will give you rides (throw them a few dollars, most will decline it but its the thought that counts) Got any questions, hit me up!!!!!!