A: Yes, if you believe it has a 9+ potential
We'll want to run the usual suspects like Rampant Growth, Kodama's Reach, Explosive Vegetation, and the decision of whether or not to run mana rocks will probably be a meta call
Considering that both cards are in print and, discounting the Aftermath debacle, is from Magic's newest set, I'd lean towards selling while prices are high unless you plan on building the deck yourself
When you scratch your head and think "How the heck am I going to win with Squirrels?!?", think Overrun, Centaur Chieftain, or even Lure
You always find all the cards in each box
They also seem to have released other product preorders for more future sets such as for Avatar The Last Airbender, Lorwyn Eclipsed, and Secrets of Strixhanen.