This was the method I used for extracting more accurate lines for the ribs. I used angled planes through the paneled points on the surface and then trimmed the planes to the surface. Then I duplicated the edges, offset the edges individually to create the depth of the rib, created a surface with those two lines, then offset the surface as a solid to create the completed rib. In the end, the ribs are centered laterally on the lines created in the above image.