I spent 9 years teaching college classes online from my RV as I traveled the country. I taught halftime and needed to be online every day for 4-8 hours. I ended up getting two Verizon mobile hotspots so that when one was throttled, I could switch to the other. I did have to be careful where I stayed, but had few problems in most national, state, and county campgrounds. (College policy, by the way, required a secure signal for instructors, so using public internet was not possible for the most part.)
Reliability of equipment is also important. One thing is that I learned to have duplicates of everything in case one broke. (Employers or customers don't want to hear about your equipment problems, so duplicates are important. My students, however, did enjoy a delay in having to turn in their next project!)
I learned this lesson when I was on Okracoke Island in the Outer Banks of North Carolina when my hard drive died on my laptop. It was a 1.5 hour ferry ride and several hour drive to "civilization," but I had a warranty with Dell and they first sent me a replacement boot drive via FedEx and tried to walk me through fixing it over the phone. They eventually had to FedEx me a new hard drive and a repairman met me at a location off the island to install it. As soon as it was fixed, I drove to Virginia Beach to a Best Buy and bought a cheap backup laptop!! After that, I kept a backup laptop, backup mouse, and the two hotspots, plus the data link on my phone.
One last tip: I found in places where the cell signal was weak, doing my work after midnight sometimes helped get a better signal.
10 hours per day of streaming video is going to be expensive and possibly hard to get, so be prepared for this to be an entirely different experience than having cable service at a permanent home. Also know that sometimes campground owners lie about their internet or at least are unaware of its limitations. For example, I was promised a good signal at one place, only to arrive and find out that the good speed was only available in the laundry room, which was NOT a good place to have student conferences or watch student presentations!