Comprehensive Landscape Plan for Duplex

I need a detailed landscape plan for a block where a duplex will be built. The plan should include: - Pads for the duplex - Retaining walls - Excavation plan with drainage Additionally, I require a 3D visualization of the landscape plan... (Budget: $250 - $750 AUD, Jobs: 3D Modelling, 3D Rendering, 3D Visualization, Architectural Engineering, AutoCAD, Building Architecture, Excavation, Landscape Design)