Design 4-Color Retractable Pen Mechanism

I have a complete 28-part pellet-press design ready to go in STEP/IGES format, along with matching 2D drawings. Your task is to machine every component from 6061 aluminium, source all raw stock and fasteners, and deliver a fully assembled, functional prototype... (Budget: $30 - $250 AUD, Jobs: 3D Modelling, CAD/CAM, CNC, CNC Programming, Manufacturing, Manufacturing Design, Product Design, Prototyping)