Experienced Unity Vr Developer for Radiotherapy Patient Education Module

I am seeking an experienced Unity vr developer to assist with the aeris project, a virtual reality (vr) educational module for cancer patients undergoing radiotherapy. This module aims to enhance patient understanding and reduce anxiety through an immersive and interactive experience.

The project is currently being developed using Unity 2022.3, Blender, and targets Meta Quest 3. I have already established the foundational radiotherapy environment, including a linear accelerator (LINAC), treatment couch, immobilization devices, and the treatment room. I require technical expertise to further refine this environment and implement critical VR interactions.

Scope of Work:
1. Environment Development: Refine existing 3D assets, materials, textures, lighting, and the overall VR environment to improve visual quality and realism.
2. VR Interactions: Implement key interactive elements such as buttons, patient identification, treatment-site selection, patient positioning, dynamic couch movement, linac gantry rotation, and intuitive navigation within the vr space.
3. Educational Content Integration: Seamlessly integrate pre-developed educational videos, audio instructions, and subtitles into the VR experience.
4. Optimisation: Troubleshoot any Unity-related issues, enhance performance, and ensure full compatibility and a smooth user experience on Meta Quest 3.

Expected Deliverables:
- A fully functional VR prototype specifically for Meta Quest 3.
- An editable Unity project, including all complete source code.
- All specified VR interactions fully functional and integrated educational content.
- Basic technical documentation to facilitate future development.

This is an academic healthcare research project, not a commercial game. The storyboard, educational content, and initial 3D environment are already prepared. I am looking for a collaborative developer who can continue my existing project, offer technical guidance, and work through agreed-upon milestones. Please share your relevant VR development experience, estimated hours, and proposed approach.