Turning deconstructed brep into clean surface? Paneling question.

Hello. Very new to grasshopper so excuse any lack of knowledge or correct terminology on my part.

I'm trying to evenly panelize a volume (which I made in tsplines and then converted to a polysurface.) I'm setting it as a brep, then deconstructing, then using lunchbox to apply a diagrid. The problem is that the brep deconstruction is uneven so the resultant lunchbox structure is uneven and patchy. I.e different densities of triangulation across the volume. I'm trying to get a more even distribution of triangles, or a more even mesh.   

I'm open to any suggestions here as I still don't really know what I'm doing. Maybe there is a different workaround entirely? I tried using weaverbird to loop subdivide then reduce the mesh, but I was still getting uneven triangulation due to the unevenly deconstructed brep. Is there a way to even subdivide the brep or join it into a complete surface? Is this the wrong approach? I think part of the problem is starting with a volume in tsplines but this is a necessary to my project. Also, I do not necessarily need to use lunchbox, it just seemed fairly straightforwards.  

Thank you for any feedback!! Below are some photos and some scripts I have been working with.