Several companies make LTE/WiFi extenders for RVs. These let you use cell data when you don’t have WiFi, and let you use. WiFi signal where it’s available. So if the sister has WiFi, the wineguard will pick it up and extend it to the RV. At the hospital, if there no WiFi, she can use cell data. You just need. SIM card.
Civil War reenactment is LARPing for people with no imagination.
