Hi, Client !
I have reviewed your project description and it looks very interesting for me.
I am a vr game developer with experiences for 6 years and I have developed many vr games for vr device (HTC Vive , Oculus Rift, Gear ,Cardboard etc) using Unity3d , Unreal Engine 4.
In Result, I think my skills would be help for your project and also I am sure I can complete what you want.
Please check out part of my vr projects.
https://www.freelancer.com/projects/unity-3d/Hospital-Room/
https://www.freelancer.com/projects/iphone/Picture-with-play-video-app/
https://www.freelancer.com/projects/rendering/HTC-VIVE-virtual-showroom/
https://www.freelancer.com/projects/unity-3d/Oculus-Room-Unreal/
https://www.freelancer.com/projects/Android/Unreal-Game-Development/
If you want a good result, please feel free to contact me anytime.
Best Regards !