Signor AndersonThe buyer has to get a little discount off the NPV calculations for the to be developed mine, else why be encouraged to come bid. Sure the Cash is worth cash, and the other mine is also easy to value, over a short mine life remaining.
Be happy with this offer, a very decent premium to the Lundin bid, and designed to be a "topper" of any other offer.
If you want to get MORE you will have to wait till the deal closes and then get the $6Can :}.