Long Range RC Car with Live Camera (kilometres of range)

I am planning on building a Car that can be controlled from a few kilometres away. I also want it to have a live feed camera. After some research it seems like 4G/internet connection would be the best for this application. There are similar projects with a raspberry pi but I wanted to see if I could figure out an easier way of achieving this. My plan is to have a cheap smartphone on the car which will be on a Skype call with my pc while also being a mobile hotspot for my Arduino MKR1000 which in turn will be controlled through the Blynk app! I feel like this is going to work well but I want to hear your thoughts and suggestions to figure out the best way of doing this project! Thank you very much!