I have an old wood dresser that is stained a dark cherry color, I sanded it all so that the top coat is pretty much gone, but of course the stain coat is still there. I'd like to paint it black. 1. Do I need primer since it is already stained I don't suspect the paint will soak up? and 2. do I need the primer to make the paint stick? 3. will black paint cover over white primer if I do need to use it? 4. should I use latex or oil based primer, I'll be using latex paint. I assume the stain that is on it is oil based, since I don't know. Thank you!