Surface Penalisation for 3D printing (as solids)

Hey Guys,
I was developing a small pavilion which is consists of identical segments (13 of them).
Kim helped me to prepare the initial shape and mane curves for this shape. My next step is to penalised this thing so I can 3d print it. I would like to use surfaces not meshes at this point.

I recon I have to rebuild my surfaces first to be able correctly place panels. I quickly modelled what I am trying to get to in Rhino, now I want to make it more accurate in Grasshopper.

The idea is top spires have openings in panels and lower arch do not.

Please see attached images and diagrams for reference. Any help or link to any relevant materials would be great.

Thank you for your help (14.0 KB)