My complete stand of dry pressure treated 2x4s weighs 62 pounds. The only variation in mine from the original design is that I retrofitted both of my uprights with extended 7'6" from the originally specified 6'0". Thus 3 extra feet of lumber over the original. Photos posted previously in this thread.
Sorry, meant to note that mine is an outdoor model, as it probably would not fit well indoors with the extended uprights. It's span is 15', and height is 6'.