Hello,
I'm an architect and 3d graphics artist with 7 years of experience in those fields. I also code in C# and have experience with Unity.
Recreating your model as a Unity scene, with graphical User Interface and scripts that will allow user to navigate around it is not a problem. It will take about 2 weeks to complete, I will realize it in stages (first work on original model, setting it up, UVs etc - than importing it into Unity - later navigation and UI - and polishing at last).
Best Regards,
Piotr Lugowski