I ordered an AV1 kit from GR Research, and im not sure what kind of a finish I should put on it. I put about 4 coats of Black Gloss, and sanded between every coat but now it looks like crap. Every imperfection is visible, and there are plenty. I need to put on something that hides my little mistakes, and isn't very expensive. I also have to make somekind of a grill for it. Any suggestions?