Yes, acceptable to use the dead/downed wood, but most sites are so well used that there isn't much left of that. And what happens is the noobs come in expecting to use that wood and can't find any, or not enough for their hours long fires, and start cutting what they can.
As a hanger, of course, I'm really disappointed when I see that much chopping has occurred on larger trees that they clearly weren't going to chop down. This eventually makes the trees unhealthy, as does the barren ground created by recurring tent use. This leads to many popular campsites to be more dangerous than they otherwise would've been, and occasionally you hear on the news about a tree falling on someone - and like 99% of the time its in one of these high use areas. The other 1% are noob hammock users that don't notice the health of the tree they're trying to hang on. Forces created by suspending your weight horizontally are substantial. Its why using straps and not rope is so important. I loathe ENO and other retail hammocks for this reason. It was years before they even offered straps as a separate item to buy, which in and of itself, is loathsome.
Sorry, that's my rant of the day.
So, why are you using what is basically a 3-4 person fly with a limiting inner tent? Have you camped in the Ga mountains before? I use a netless hammock year round. My guess is the bugs have too much good environment around the mountains at lower elevation than to try living in the mountains. There are some not so intrusive ones and with insulation around me, the only exposure I might have is my face and I do carry a bug net for that purpose, but rarely use it. Frankly, I use it more in the daytime for gnats. The Cloudburst will, of course, be great for when you're hanging and you'll have all that room underneath to cook, change clothes, lollygag or whatever.