It is a scam. The one I saw like that did not end up at the real ebay website, but some other one but it looked 100% like ebay. report it to ebay (or not) and run. I think they may have it on the real ebay for a brief period to get the page, then "spoof" the page, looking like ebay, but not really.
When you give her the information, she will give you a link to the "ebay" page so you can click on buy it now. You are only protected by ebay when you are actually on their website...
I kept one going for awhile that was selling a JD compact real cheap. I kept saying, where can I look at it?, how do I pay? until I grew tired of them trying to scam me.