Regarding hammock for a large person....check out the Claytor Jungle hammock. It's longer than most at about ten feet. I'm not sure about the weight rating but I suspect it's fairly high. I also have an ENO with their bug net system...It's OK but I greatly prefer the Claytor. I also don't find the extra width of the ENO double to be of any great advantage. I slept in both during the trip and have decided I prefer the all aspects of the Claytor. It also has a double bottom for inserting pads. It's definitely my favorite so far.
Good luck, Miguel