To long ago to give a price, but I think it cost about $80 to $100, but I cant really remember.
Here is an image of my pier
before -
https://photos.app.goo.gl/5G92kWuomi6a9ndz9
After -
https://photos.app.goo.gl/4hEiB4hwjq6UduVR7
Can't find any full images of the after only enclosed one.