$820m for northparkes, how does dml compare?

Seems like the price for Northparkes was above the expectations of some. Can anyone offer a comparison of Boseto vs Northparkes?

interesting quotes there gocu:

http://mobile.reuters.com/article/idUSL4N0FY0KD20130729?irpc=932

"Copper is seen as one of the preferred commodities by the investment market... Obviously the Chinese are taking a view on the copper market as well" said UBS analyst Glyn Lawcock

The price was better than analysts' valuations on Rio's Northparkes stake at around $400 million, excluding potential new resources. But analysts had said the company would look for between $750 million and $1 billion.

I wonder if DML can pull it together in this quarter...