What a lovely thing to do
![Smile :)](https://mlparena.com/Smileys/default/smile_001.gif)
I agree that that is steep for her, even MOC - as a set they crop up with reasonable regularly and that keeps them lower in price.
However, if you are in a rush then as long as you are aware you are purchasing over collector value, then I dont see any harm in trying to negotiate it down a touch and buying at the price agreed, even if it is over the $50-55 she is worth.
If you are not in too much of a rush, you should try posting a wanted ad over in the wanted forum or even adding a little "advert" in your signature in order that people can see you looking and hopefully help out.