I'd be happy with an announcement of 3 years starting 2015, knowing the third year might be dicey in terms of value on the paddock. If there's a 4th year option, hopefully it's in the club's favour.
As for how much, Manly would have to be footing the bill of money owed in his backended contract (I think I read $300K?), so we might be able to squeeze him in for less in his first season ($300K for a total of $600K), and then at full value over the final two seasons. If we're smart we will have had some component of the contract as a rep bonus (say $50K/year), meaning that if his form flags in the final year we can save a little from the maximum contract amount.