[Project] build a wireless link for a camera-car

Hi to all! Thank you for attention,
we live in a time where different technologies let us achiving the goal, so I suppose is petter asking who has more experience then me, instead of knowing later that existed a better technology, so I hope to receive some suggestions from you.

I'm serving an indoor karting circuit, I would suggest my client to install one camera on one helmet and show live the video in the guest room..
Considering the perimeter is iron made (reflective), that the farest...

[Project] build a wireless link for a camera-car