Hi. We are making a sculpture (of sorts) out of stainless sheets. The sheets have been laser cut into shape and etched at the same time to define different areas of colour. There will be six colours, Bright red, bright blue, bright green, white, black ideally matt) and brown. Choosing suitable paints seems tricky. Would you mind making it easy for us and tell us exactly which primer and top coat to use and we will order them? The sculpture will be installed outside in the open air. There's probably about 12 sq m to paint. With many thanks.