Create accurate STEP Models for Swivel Brake and Fixed Casters

I need production-ready CAD models of several configurations of casters and wheels delivered in native STEP format. Every geometry and surface detail has to match the real-world part exactly—height, wheel diameter, tread width, mounting plate, brake mechanism, even the profile of the yoke... (Budget: $20 - $30 NZD, Jobs: 3D CAD, 3D Design, 3D Modelling, 3D Rendering, AutoCAD, CAD / SolidWorks, CAD/CAM, Fusion 360, Solidworks)