I just measured all 3 bikes center to center: the Miyata has a 57cm top tube and 40 3/4" wheelbase, the old roadster is 60cm with a 46" wheelbase, and the Azuki (converted from 10 to 3 speed) has a 62cm top tube and 44" wheelbase.
Maybe the Eddy Fit is all wrong? Also all 3 bikes have 25" center to top seat tubes.
Doug, I'm about 6' 1" and 35" inseam, yea long legs and short torso (old back injury and surgery). Tim