Euro Train Tickets

What is the cost of the Krakow-Budapest night train?
I know there is one that runs from Krakow to Budapest. I also know you can’t book online, but only at the station. Does anyone know how much the tickets are either in forint, zloty, or euros?
There is train leaving Krakow about 10 pm arriving in Budapest 8 am. The least expensive ticket is about 140.00 Poland official money are zloty which at present is about 3.5 zl for a US $.
You can book on line thorough Rail Europe located in United Kingdom. http://www.raileurope.co.uk/Default.aspx?tabid=1003