Surface Model to Native SolidWorks

I’m working with a customer-supplied CAD file that arrived as a set of stitched surfaces. Because of this, I can’t edit dimensions, add new features, or run proper mass-property checks in SolidWorks. I... (Budget: $10 - $30 USD, Jobs: 3D CAD, 3D Design, 3D Drafting, 3D Modelling, CAD / SolidWorks, CAD/CAM, Mechanical Engineering, Solidworks)