For the house and especially in a place nobody is really going to look anyway, I'm all about low maintenance. If it were me and unless I really wanted to paint the ceiling a different color, I would go with vinyl beadboard for the ceiling....one and done. Something similar to: https://www.homedepot.com/p/Veranda...anel-Planking-Moulding-3-Piece-0102/202033620 If I really wanted to paint it, I would probably go with pine beadboard paneling. Unless someone has an obvious issue, like you are trying to correct, when is the last time you really looked at someone's porch ceiling? 99.99% of people won't even notice (or appreciate) a porch ceiling made using T&G cyprus versus a beadboard panel.