petsafe electric dog fence

Hi! Our yard recently got fenced in, so we no longer need our very functional, reliable electric fence. We have the tower, probably still the little flags, charger for 2 collars and 2 collars. The 2 collars are trimmed for little dogs, so it's possible you may need to macguyver them to make them fit a bigger pooch. This is the link for our product: https://www.amazon.com/gp/product/B0055L8RRC/ref=oh_aui_search_asin_title?ie=UTF8&psc=1 Would love to see this go to a good home. Thinking $50 for it, or a fun trade or just to give it to someone who will use it! Grace