whoa... this one is news to me. I've seen the blueprints of the opposite side of the main hold for ESB, where the holochess set is, but I had to extrapolate the beams and doorways shown in this drawing. Thanks!
there are some rough ANH blueprints that I know of, that I think might be posted on this thread waaaaay back near the beginning. But as far as I've been able to tell they aren't very accurate to the real set