We have a Fortress FX37 that has never been used.
It is rated for boats 46' -51' We kept her aboard our 42' sailboat as a backup storm anchor.
Fortunately, we never had to use it.
It does have a few cosmetic scuff marks from being mover around for 7 years, but that is it.
The least expensive one I could find online is on sale for $460 plus shipping.
We will sell ours for $375 including shipping to east coast locations. (would need to get shipping cost for Gulf or West Coast)