3D Panorama Virtual Tour Creation Software

I need someone work for me to build online 3D panorama virtual tour creation system in order to offer free panorama service to our current real estate agent clients. Here are key points about this project and requirements: 1, You don't need to build it from scratch, but work from a good base: [login to view URL] which is an open source panorama tool and so is free. I am told that Mazipano is the best free 3D panorama. 2, You must have previous experience working with panorama virtual tour, and know WebGL objects, [login to view URL] library, and Virtual Realty well. Please show me your previous similar projects to prove you are the right person for this project. 3, The 3D panorama virtual tours built with this system must support gyroscope and virtual realty, and may be viewed in Cardboard, Gear VR, and other popular VR devices. 4, Some other smaller features would include: floor plans, thumbnail images, sound, video, member account, and virtual tour site publication. 5, I will provide you with sample virtual tours after we have agreed each other.