PCB & 3D Enclosure Design for Simple Automotive OBD-II Device

I'm looking for an experienced PCB designer (with mechanical/CAD capability preferred) to design a compact automotive OBD-II device. The electrical circuit is intentionally very simple, and I already have the basic schematic. The project is primarily PCB layout and enclosure design rather than circuit development. Circuit The circuit consists of: OBD-II connector Rotary switch (4-position or 5-position with one OFF position) Momentary push button Status LED Blink/activity LED (preferred addition) The device will be powered from the vehicle's 12V supply via the OBD connector. Requirements PCB Design Design a compact PCB based on the supplied schematic. Select suitable components with cost in mind. Ensure the LEDs are correctly driven from the 12V supply (series resistor or other suitable design). Optimise the layout to minimise overall size. If a right-angle version of the required rotary switch is unavailable, a small secondary PCB connected to the main PCB is acceptable (although a single-board solution is preferred). Mechanical / CAD Design Design a simple enclosure suitable for FDM 3D printing. Requirements: Compact overall size (similar footprint to the attached example). Designed specifically for easy 3D printing. Prefer larger flat surfaces rather than complex angled faces. Provide access to: OBD connector Rotary switch Push button LEDs Deliverables Please provide: KiCad project files (preferred). If another PCB package is used, that is acceptable, but Gerbers must be supplied. Gerber files Drill files PCB fabrication outputs STEP and/or STL files for the enclosure Editable CAD files where possible Simple component list (a formal BOM is not required due to the small number of parts) Recommended manufacturer part numbers for all components Additional Information The device is powered from the vehicle's 12V OBD-II connector. I would ideally like two LEDs: A power LED to indicate the unit is powered. A second LED used as an activity/blink indicator. I will provide: Basic schematic Example photographs of the desired form factor Dimensions and any additional information required. Proposal Requirements Please do not submit AI-generated proposals. I am looking for responses from people who have read and understood the project requirements. Please include your total fixed price for the complete project in your proposal. Proposals that do not clearly state the total cost will be ignored. Please include examples of previous PCB and/or compact electronics projects, particularly automotive or embedded designs if applicable. There is also the potential for future PCB and enclosure design work for the right candidate, as I have several similar automotive electronics projects planned.