Combing 360 photos With a 3D Model

We are currently looking for a developer who can help us with an integration of 2 separate products that we are currently delivering. We want to offer to our clients a 3D virtual tour by combining navigation via a 3D model created with pictures taken by a drone (photogrammetry), and 360 photos created with a 360 camera. The goal is to "nest" the 360-photos into the 3D model so that the entire model can be viewed in an interactive way. We hope the resulting interaction is similar to a Matterport tour, such as this: [login to view URL] You can drag around the 3D model, or click on any portion of it to "zoom" into it, and then view the scene via the connected 360 photos. The magic in the Matterport virtual experience is how well they integrate the 3D model with the 360 photos. The integration between the two forms of visualization creates for a very immersive tour. We already know how to link to the 360 photos within our 3D model on Sketchfab like this: [login to view URL] but this isn't nearly as immersive, streamlined, or functional as we'd like it to be. Basically, we would like the 3D model to have a small icon or marker which once clicked on, zooms into a 360 view of that corresponding place in "real life". Here are the 360 photos for your reference: [login to view URL] If you accept the project, we can send to you the original 3D model's file as .obj, and the original 360 photos as equirectangular jpg files. Alternatively, since 360 photos need a media player to be viewed, I can send you the html5 file of each individual 360 photo if this is easier to work with. If you think that using Sketchfab alone will suffice, that would be perfect. If you think using something else (Unity?) is better, we're open to your suggestions.