Minnesota, let me give you a (humorous) insight into Ray. There are three kinds of people who end up owning domes: people who pay someone to build it for them with no hands-on involvement; people who oversee the job in a managerial sense by, for example, hiring the excavator to run the backhoe; and people (like me and I sense, you) who just HAVE to jump into the backhoe and operate it themselves. And then there's Ray and Beth. They don't just operate the backhoe, they're inclined to rebuild the hydraulic arm so that it digs the footers in a radius instead of straight line, if you know what I mean. If there's a part of the process that they can touch, modify, improvise, MacGyver, or just play with, they will. Why? Because it's their nature.
I so look forward to seeing what their house ends up looking like, because "well, that's the way we've always done it" just becomes one more reason for them to look for another way. And collectively, that's how we improve our skills, materials, and methods. Ray and Beth are building in the tradition of a guy I know who's making a post-and-beam house by sawing every beam himself and cutting every mortise and tenon by hand. Not for everyone, but I admire that pioneer spirit!