I would say Watkins is definitely in play for us after trading down (and it's highly likely they trade down again - maybe out of the 1st round completely). Watkins is probably more in keeping with the sort of linemen they seem to go for than Pouncey. Just as versatile as Pouncey in that he can probably play right tackle as well as Pouncey can play center.
As for being 27, well Ireland isn't going to care much about that. Guards can play forever anyway