Triangular surface.

Hi everybody! Here is my current project and i decided to realize it using grasshopper. As i'm not good in grasshopper i did this basic frame using that basic knowledge that i have. The first thought is that this is pretty huge and clumsy method to realize such a simple structure and is there any simpler way to realize this?

Further i'm going to close(loft) every single triangle and this is also a problem for me. Finally i'm going to make a parametric copy of the 3ds model shown in the file. Actually i think i'm going wrong way from the beginning (or not?), so i ask a constructive help from the professionals.

Hope for your understanding. Any help or suggestions will be greatly appreciated!)))