You're welcome!
I just remembered, Ursa Minor was in one of those "spoiler" drop-down menu's that the seller had (not sure if that helps or not).
I hope you can find out who the seller was and that they still have her for sale. I think she was around the $15 mark and was located in the USA.
If not the best thing I can suggest is to just check eBay every day/week. She does turn up every couple of months on eBay. Best of luck.