Here's a guide I made when I did mine. I followed other methods on the net but can't find them.http://celicagarage.com/forums/viewtopic.php?t=1185
take your time, give yourself a full day. Start at around 10am. Let the paint dry about 1/2 hour or so between coats. Also, I painted mine on the underside, & masked to top to get the ribbed look. The picture you've posted has the top side painted. That gives it the smooth look.