I talked with an old friend about the scaling on the 8-2074 drawing. While there are no dimensions on most of the drawings, he pointed out that the flat panel in the A-11 position has a hole that is speced at 1.95". Using that as a reference, we have the following scaling. The tic marks along the bottom of the drawing (the zone definers) are 10" apart. The "rulers" on the drawing are 10" long with tic marks every 1/2". Putting this all together, we can estimate that the original full size drawing was probably 34" x 132". Eyeballing the panel above the zone 7-10 position, it's about 30" wide, which seems reasonable. From a different drawing, the shaft that supports the rudder pedals is 28" long.