Production-Ready Silicone Wearable CAD

I'm developing a compact haptic wearable and need an experienced mechanical engineer to turn the concept into a fully production-ready silicone enclosure.
The device contains a PCB, micro-vibration motor, magnets and a Li-Po battery, all inside a slim geometry with 0.1–0.2 mm tolerances. A clear BLE antenna zone must remain free of metal or over-mold flow. I will provide STEP files of all internal components, the clearance chart and the preferred assembly sequence.

What I need from you:
• 3D CAD model of the complete assembly (STEP + STL)
• All internal cavities modelled with correct tolerances
• Silicone over-molding allowances included
• Magnet pockets, motor pocket and PCB channel correctly dimensioned
• Exploded and section views showing every fit surface
• Basic 2D drawings for manufacturing: key dimensions, wall thickness callouts, cross-sections, assembly notes
• Concise documentation for the prototyper so the first silicone shots are correct without iteration

Acceptance criteria:

Every internal component fits without interference in the digital assembly.

BLE antenna zone remains untouched by metal inserts or over-mold flow.

Output files open cleanly in SolidWorks / Fusion 360 without errors.

Dimensions on the 2D drawings match the 3D model and tolerance stack.

If you've previously designed small silicone consumer products or wearables—especially where tight internal packaging was critical—this is exactly the experience I'm looking for.
Please share one or two relevant examples and outline your typical workflow so we can get started right away.