Modern Massing and Rendering

I need a conceptual massing and rendering for a 700x470 site to accommodate 2 million square feet at 10 stories or less.

Requirements:
- 100 feet separation between buildings
- Focus on building heights and separation in the massing model
- Modern architectural style for the buildings
- Conceptual rendering style

Ideal Skills and Experience:
- Experience in architectural massing and rendering
- Strong understanding of modern architectural design
- Ability to create clear, conceptual visualizations