2D Mechanical Drawing Documentation

I need a 2D mechanical drawings to improve on current basic drawings of ball bearings. There are about 2600 existing drawings. Requirements: - Create a more professional 2D mechanical drawing possibly... (Budget: £3000 - £5000 GBP, Jobs: 2D Drafting, 2D Drawing, AutoCAD, CAD / SolidWorks, CAD/CAM, Drafting, Engineering Drawing, Mechanical Engineering, Product Design, Solidworks)