Looks nice, Tombair! Not to compete with the OP, but I figured since this thread was recently bumped, I'd show what I had to offer in regards to 3d stadium modeling:

| New Yankee Stadium modeled by Ry1220 with Google SketchUp. |
EDIT: A better view
here.
I will finish this model eventually, and based on feedback, I may make some other (fictional) stadiums.