What a rough crowd!
Just because its scored doesn't mean its useless. Pull the top end off and see how bad it is. Many times the cylinder can be salvaged, and just a piston and rings can get it going again. If you aren't mechanical, or don't want to fool with it, box it up and you'll find a taker here on AS if you keep the price low.
I fixed a saw earlier this week that had 75# compression. It was scored, but the cylinder cleaned up, and I cleaned the piston and ring up and put it back together. I was thinking that a new piston and rings were going to be necessary, but 160# compression cold may have changed my mind.
Lots of folks here dislike Echos despite their reliability. The 455 Rancher doesn't get much respect either, but would be a backup saw for not too much additional $ provided the cylinder isn't trashed.