Hi,
I've been using the Unity engine for over 2 years and have experience with gameplay programming, UI, inputs, shaders, implementing plugins, data serialization and more. I worked on a match-3 type game that can be seen in my freelancer portfolio. I'm currently working on a 3d jrpg style game, I can send you some samples if you contact me.
I'd like to discuss the project to understand the full scope of the work to be done. I understand you want an interactive tour for houses/buildings. I'd like to know the full extend of the features you want for the program. Once we discuss the project, I'll be able update my bid and timeline.
Thank you for your consideration,
Martin