A QP is inherently harder to make, assemble, decorate by hand (and requires a lot more math). Perhaps 100-300 pieces per year (a guess).
An AP of this ilk is a great machine, to be sure, but is serially produced, so easier to produce. Most likely 600-1200 pieces per year (also a guess)
My guesses are based on 422 dealers world-wide and slowly being reduced. How quickly/easily to get per year.
-Dean