Sounds like a simple VR home tour, me and my team can finish it up rather quickly depending on the scale of your home walk through from a min of 7 days tops up to a max of 60 days.
For the VR tour i would suggest using unreal as me and the team has already made great trials from this , also we have a backup from the whole VR community here locally, so if you want it done perfectly we can get a lot of majorly experienced peeps for you but please note that they are very expensive, expect a lot of cuts from your budget if you want us to get them for you.
PS. you will need a safety harness , a barf bucket , and safety glasses , as we have done a lot of VR with VR PH with a lot of people using our demo's and those 3 things crucial for it , take from me from experience