We had a Weekend Warrior FB2200 wide body toy hauler that could get into most state and national park sites, but sometimes the height and width made for a tight squeeze between two big twisted aged trees. When we needed more garage space, we did not want to give up access to these parks and had to rethink how we camp. For us, going to a truck camper and towing an enclosed trailer kept us at the same length and height prior setup.

We have always run a small 300w inverter for our TV. As others have pointed out, larger inverters will require larger battery capacity and run time will be dictated by Ah's available and how those batteries get recharged.