I'm doing due diligence on if there is a market to support the project in that format.
The good thing about VR is that it is a new medium. The bad thing about VR is that it is a new medium :-)
Long history short, is too early to tell if there's a market for this, even if you get some stats for that. However, you're entrepreneur, the only way to really know if there's a market for something is to do it and see what happens.
That said, with VR, I speculate that the biggest platform is Google Cardboard, just because it is so cheap, followed by Samsung VR -again due to cost-. Third will be Oculus, Vive and when its release, PlayStation VR, which -I think- will take then third spot right away.
In any case, all of the mentioned are different platforms, which require individual path of development. So, you'll have to chose on which one to do your MVP. I would think Cardboard and Samsung VR for the previous given reasons.
Going specifically to your concept, some events in the last summer olympics were broadcasted in VR. I thought it was cool! Have you experienced those? I'm sure it will give you a base to continue your project.
Best of lucks! :-)