Workamping question

My wife and I are toying with the idea to go fulltime in about 9 or 10 years from now. My wife will be doing contract work with a company and will need seucre, high speed internet. We are considering doing the workamping thing (or at least I will be doing the work). I know most people usually do the workamping for public parks (state, federal, etc), but for those that have done it at private parks, have you ever had a local cable company or phone company install high speed internet for the short term (3-6 months)? Wondering if it had been done or can even be done. I know the park would have to ok it, but perhaps some places would allow it. The company wants her to have secure high speed internet. Don't think our cell data plan (30GB) could handle it or if they would even consider it secure enough. Then again, maybe something will change with the technology in the next 10 years...