I would be interested in your describing to me how the 707 "evolved" from the 367-80 and what changes occurred during this "evolution".
Well, according to an earlier post:
The biggest change was the increased diameter in the upper lobe of the 707 to accommodate more seats abreast to compete with the DC-8 . The planform of the -80 is almost identical to the 707 but slightly smaller. The structural centerlines are identical as is the wing sweep. The -80 fuselage is slab sided where the 717 upper lobe is semi-circular, the 707 upper lobe is a larger circle that produced a crease line that does not exist on the -80 or 717.
I couldn't put it any better than that ...