His Own Land
A lot of people have expressed their concerns about the laws surrounding a project like this one. Well, there were no legal issues whatsoever since he was the owner of the plot of land anyway. He certainly thought the whole thing out.
Building Wings
The wings needed to be deconstructed in a way that it would still be possible for Bruce Campbell to reinstall everything after the airliner got to its new environment. He figured that he would begin working on this “work in progress”. That might have been how it started, although it later became much more than that after all the years of hard work he put into it.