Trying to create lofted ridges

Hello everyone!

I am trying to turn these lines into a continuous surface/loft. I tried to list item and fine each corresponging row so that I could loft them from there but that only gives me chunks going in each row. Maybe someone here might have some direction on how to get this to loft properly.

help1|690x398

Thanks for any help you guys might be able to give!wavy lines test.3dm (121.0 KB)
shape.gh (7.3 KB)

Something like this?

shape_re.gh (19.3 KB)

Exactly like that!
Thanks so much! Looks like I was sort of on the right track logically but this explains how to sort it out better!