Yeah, my hammock does a fine job of keepin the bugs at bay, and its comfier then a tent IMO. I didnt understand the post at first. I was thinking, Why the heck does this guy want to lug around a big tent everywhere???? I totally get it now, and I commend you for wanting to get the family out with ya.
That said, Id check out REI. They carry some nice tents that are lightweight, and big enough for ya. Ive always heard nice things about the REI branded tents, but they carry a ton of brands. I think by needing a tent that big you are totally gonna have to go lightweight, even if it costs some durability. With a family trip like that you have enough to carry. LOL......
When my family head out we usually end up spread out in seperate shelters like gypsies. Tarps, Hammocks, Bivys, and tents....lol I have been around hammocks long enough now that I am hooked. My wife got her first Hennesey recently, and we are eventually gonna outfit the troops too. I think it could be a very effective way for a family to get out and backpack together.
Also of interest to me is a tipi from Kifaru, or of my own making. With a wood stove, I think it would be like a RV in the winter. Maybe not packable with the need for the poles, and the weight, but with some work it might be....Dont know really.