Do that deal immediately! Ryan's value isn't nearly as high for you since you'll be starting Romo for years to come. And you can team Moss up with Marshall and Boldin? Holy Bleep!
If Moss stays healthy (and he generally has been) and stays focused, he should be able to keep getting it done for another five years. Even as his eventual decline begins, keep in mind that he's starting it from a lot higher point than most WRs.
12-team PPR, start 1QB, 2RB, 2WR, 1TE, 1 flex (RB/WR/TE), 1D/ST
Unlimited keepers, but more than 6 cost draft picks, starting w 1st Rnd
MJD, CJ1K, McFadden
Jennings, LFitz, VJax, Wallace