If the counter top is in good shape I would leave that alone. You can always replace that later on. The main thing I would do is add some color. It really needs some color in the room. Paint the walls. I don't know what kind of decor your are into but, you need some color in the room. The white is just kind of blah. It is a nice kitchen but, needs some paint and decorations. The sink I would go with stainless steel. Are the cabinets in descent shape? If they are in good shape then put some handles on them. I like the color below or lighter green for the walls and then add some nice window fixtures and some border.Cabinets are a couple of thousand dollars. Then if you aren't going to install them yourself it is going to cost you to have them installed.