VR Game Development Expert Needed

We are a drone imaging company. A client who is a promotor has asked us to make a drone video of a overflight of his domain. His three buildings has jet to be conbstructed. So the terrain we have to overfly is yet empty exept for some old ruins. The client has 3d virtual views of his buildings. Your task would be those 3d models in the drone video so it seams they are realy there and of course would be viewed from different angles following the drone flight?