Convert CAD Drawings to Revit

I have a full set of architectural, structural, and MEP drawings in 2D CAD and now need a coordinated Revit model that I can bring into Navisworks for clash detection. The model must carry enough detail... (Budget: €30 - €250 EUR, Jobs: 3D Modelling, Architecture, AutoCAD, Autodesk Inventor, CAD/CAM, Mechanical Engineering, Revit, Structural Engineering)