Your list is looking better and better!! Where I've added comments, please take them with a grain of salt, you've got to hyoh (hike your own hike)! About your switching to a hammock, please go over to the hammock forum, so much info there. Does the hennessy come with a tarp?? And bug netting? Is it one of those bottom opening ones? You will need insulation under you and please don't think that your sleeping bag will be your under insulation, it wont. When you do get your hammock, please see if you can't test it out some before heading out on your trip. There is a learning curve with these things. Any items I left off your list was because I carry them too or couldn't think of any reason not to take them. Something I do carry is a device so I can stand up to pee and not have to squat. Plus I hike in skirts instead of shorts or pants. I do carry a pair of shorts for either nite time or butt scooting over rocks. If you've got the time, try hiking in a skirt. Much less to carry too. I too use a hammock, so best of luck with yours. Remember to hang it with your feet a tad higher than your head ! Yes you read that right, feet higher!! It tends to keep you from sliding down inside the hammock at night. good luck and keep whittling away on your pack items.
TinaLouise