Try to find you a one gallon carboy. Look at the local grocery or wine store and see if they have those gallon jugs of wine. You could look around if any store has gallon jugs of cider, etc. You are going to run the risk of oxidizing the wine unless you have some CO2 you can blanket the wine with. Or you could use a whole lot of glass marbles in the carboy to raise the level to a safe spot.