With 3 lymph node involved, it sounds like stage 4, not stage 2. MSK is the number 2, often 1, cancer hospital in the country, so you are in good hands there, but it's always good to get another opinion. Don't wait too long for MSK to act, they dropped me like a hot potato after waiting a month or two, sending every document to them, but I was already going elsewhere for 2nd and 3rd opinions, so I was ahead of them.