It all depends on whether it is a full or partial shot. An 80 yard shot would be a full SW or a partial PW for me. For a full shot, I will use a normal stance, for a partial shot I would use a more open stance.
Unfortunately, the only good advice I can give is to practice this shot with a variety of
clubs and a variety of stances until you find something that works for you and that you can become confident with.
If this turns out to be a 3/4 9 iron with an open stance or a punched LW with a closed stance or anything in between, then that is what you should use.
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Regards, Peter