Stuck with recreating my rhino design in grasshopper


I have very little experience with grasshopper, and I am trying to make a design I made in rhino, in grasshopper. I am currently struggling with adjusting a curve in grasshopper te create a comparable form as in rhino.

This is the design:

The “walls” on both sides of the path have a quite complicated form and I can’t figure out how to make this in grasshopper.

I’ve come this far:

I thought to maybe use “offset curve loose” component? But I can’t really find any info online on how to use this component properly and if it’s suited for my situation.

I hope anyone can help me out!

Gh file: (34.5 KB)