Convert Drawing to STEP

I have an existing 3D model of a part that I now need in a clean, manufacturable STEP (.stp) format. The original file cannot simply be exported; surfaces and features must be rebuilt and fully defined, so I’m looking for someone who is comfortable reverse-engineering geometry inside SolidWorks.

Here’s what I expect:
• Re-create the part accurately in SolidWorks, matching every dimension and feature from the supplied model.
• Deliver a validated, error-free .stp file (and the native SolidWorks file if possible) that opens flawlessly in downstream CAD/CAM software.

If you’ve already completed similar conversions, briefly describe that experience when you respond. The smoother you’ve handled tolerance-critical parts in the past, the better. I’ll provide the source model as soon as we agree to proceed and am happy to clarify any dimensions or intent along the way.