Drawing two meshes procedurally in Unity3D

Question

Hi guys, there is any Unity3D dev who can help me?

I need to create 2 meshes procedurally and I don't know very well what order to give the vertices to show them correctly
Is there any app/utility to help me establish?

This is my code: https://gist.github.com/z3nth10n/35a3ae22064d4ab85abb05b4e15bc854

Doing this on paper is complicated, so I ask for some utility to help me mark the positions of the vertices and the names of the faces to take care of the references I need to use