Looks to me like Mutt has given you the best advice. Also once you have decided on the range you require do you know for sure your future requirement won't change? There is maybe a lot of sense in choosing something which will do 20% more than you think you'll need.
In terms of the 3000nm requirement the only one I'd add to the list is the Hawker 4000. Purely on the same line of thinking as the CL604, ie much lower running costs than the bigger boys.