$ Price Check $ Petite Fuzzy Slippers G1

[DiamondWillow]

So my dad has this little guy he picked up at a thrift store. What we'd like to know is how this little guy should be priced/valued. Shes got her cutiemark half rubbed off, her tail has been cut short, and she only glows a tiny bit now. If she were in pristine condition, this wouldn't be too hard but we understand her value has gone down and don't wish to try and sell it for more than its worth.