I wouldn't even attempt this without some kind of training. Don't get me wrong, I like kits and tinkering with stuff. But to me, this kind of falls into the same category as the "build your own airplane" kits. I'd be perfectly happy to build one for someone else, but not one I was actually going to sit in and fly a thousand feet off the ground in.
Some things are better left to other people who know what the phuck they're doing. That's why we have a society where people specialize in certain things. Of course, if a collapse did occur you would have to develop the skill set of a jack of all trades. But I still won't be going up in the plane that the guy two streets over built in his backyard.