Can't wait to see this take shape. I mentioned earlier in this thread how I like the plane and it is cool because it uses an AET scheme instead of elevons. That was designed before mixing, and it's neat, but not efficient. With a tailless bird like that I wouldn't copy that feature(I have before, it works, but clunkier). Just use elevons and it will be simpler. Other than that, the design is a really straight forward prop in slot delta.