like nulledbb has but you reply to unlock the post then you pay to see content here some images.
Note you will need newpointhide system. "i haven'tyet figured out how to integratethat hide system with this lock system so you will need to manually add [lock] [.hide] content [/lock] [./hide]
you could make a custom BBCode that uses [lock] & [.hide] to automatically add it just saying.
my bad i forgot the download link "fixed"