I have the Hubba Hubba and love it, but I use it basically for a one person luxury tent on non-backpacking trips with my son's scout troop. Great tent, but you can go lighter with a little more study. I've become quite fond of my HH Hyperlite hammock set up, but that's a different discussion.
When you say you are redoing your and that these three things are "what you've come up with so far", do you mean you plan to revisit other gear items you carry? If so I strongly suggest you postpone the backpack purchase until you are through with everything else. I have spent the last year going through everything I carry, and I'm very very grateful someone here gave me that advice. Otherwise you can end up with a pack with too much volume or is designed to carry too much weight.
If your goal is to get as light as you can, given a certain level of comfort, while spending a certain level of cash, you cannot afford to end up regretting many purchases - certainly not significant ones. This site has helped me tremendously to make wise decisions, find some great deals along the way, and to rethink what I really need to carry. All my gear is purchased (I know you can't ever really be through, that would take some of the fun out of things!), and when Santa brings my ULA Conduit I'll be just under a nine pound base weight even though I'm carrying a relatively heavy (by UL standards)two quilt hammock set up, but that's part of my "given level of comfort". Hope this helps.