Oval Staircase AutoCAD Manufacturing Drawings

Project I require a detailed 3D CAD model and complete fabrication drawing package for a custom oval/elliptical staircase for a residential house in NSW, Australia. An approved architectural A3 drawing is attached... (Budget: $1500 - $3000 AUD, Jobs: 3D CAD, 3D Modelling, AutoCAD, CAD/CAM, Design Optimization, Mechanical Engineering, Solidworks, Structural Engineering)