gday blu_rock
deck looks great! might i suggest you go with an oil as a poly will no doubt require as much maintenance as the oil if it is to not wind up being patchy. at least with the oil you can slack off for a year and the timber will only dry out - when you re oil it will go back to lookin good, however the poly will need sanding and re-application.
cypress will look great i love it. what type of screen are you doing?![]()