Custom PCB Enclosure Design

I have a completed PCB designed in KiCad. I exported the full 3D model (STEP file) including all components.
I need a designer to create a complete and visually appealing enclosure around it.

What I need:
- Import my PCB + components STEP file into CAD
- Create a custom enclosure that fits the board and connectors
- Add mounting posts, screw holes, and lid
- Ensure proper tolerances for 3D printing (or injection molding if needed)
- Provide final 3D files in STEP + STL formats
- (Optional) Suggest design improvements

Deliverables:
- Editable CAD source file
- STEP file of the enclosure
- STL file ready for 3D printing

I will provide:
STEP model of PCB with components (exported from KiCad)
Photos/sketches of how I want it to look (we can discuss about that as well)