What does the scorecard look like?
For the one club, personally would bring an 8 or 9 iron out knowing I can get pretty versatile around the green with it whether it is a bump and run or opening it up to get some air under the ball. I think more strokes will go wasted around the green so that is probably a good place to start for club selection, and start clubbing up based on the longer par 4s and 5s.
3 club, that what I would play as well.