In preparing to start the car up for the first time, we needed somewhere to sit. We put the original drivers seat back in, and placed some wood over the floor boards where it had rusted through. It's not perfect, but it will work for now.
We filled the radiator with 1 gallon of anti-freeze, and then managed to get about 1qt. of water in before the system was completely full. This is a 9 1/2 qt. system, so we'll need to top it off with water once we get the coolant to pump through the engine.