I'm going to be buying a replica spoiler and need to paint it. I have a buddy with the gear but don't know how much paint to get. I've never painted other than plasti dip rims and primer bumper on my Explorer. Would a pint suffice or do I need a whole quart? I found a good site that sells matched paint (I have Tuxedo black so not hard to find the hue) bit the quart is almost a hundred dollars while the pint is fifty. Any advice would be greatly appreciated.