you can do it with a compressor that small, i have done it before, just make sure you do it with a low pressure gun, and do it 1 panel at a time, as the compressor wont be able to keep up with the air. the bigger the tank the better.
also make sure you have a water trap towards the end of the line as having at the beginning wont work. the air coming from the compressor is hot when its working that hard, and the water gets through the trap.