What is required to create a program on Oculus?

Question

Unity

Hey!
Not so long ago, the task arose to develop programs for Oculus virtual reality glasses. Subject - real estate. An interactive real estate sales tool, essentially. With the opportunity to walk around future objects (apartment, floor, residential complex).
What are the stages of development of such a program? Do you need only the person who writes UNITY3D or someone else?
What is the average price of an hour in such a development?
Thank you very much!