Do you have access to a paint gun? That's the only way to do it. Invest in an air compressor or you don't have one already and get yourself a paint gun. Probably the best investment I have made in a long time. Mine has only been used to prime and paint models for design studios at cool but it works beautifully. Also pay attention to air conditions. I dont really know the ins and outs but air quality can be a large factor and should be consider.
