I'm looking for assistance in the creation of an American football stadium, to which I will pay accordingly, with the below specifications but I'm also open to suggestions and revisions.

1. The lower bowl and playing field ideally should be a sunk-in configuration where the top of the lower bowl is at ground level.

2. A complete stadium building on ground level, in a rectangle configuration with 3 or 4 tier of seating.
3. Typical stadium items like scoreboard, small details, and large lights for night games.
4. A medium size building at the front entrance for tram and metro public transit connection.