my tent setup can go to -5° or 15° depending on which bag I use. My 15° setup (tent, pad,bag) weighs 4.8 lbs. If I use my -5° bag it changes to 6.5 lbs.
If you go to RRG there are places to camp a 1/4 to 1/2 mile from the road. Lots of trees and tent sites.
Guess you can see I will not be in a hammock.