Upload & Sell: Off
This isn't one of those "What should I bring with me to 'xxxxx' " questions (I hate them too :P)
Yeah it is. But that's OK
I've been there a bunch. I'd recommend the D3 and the 18-55 Nikon OR the 28-75/2.8 Tamron AND the 70-200/2.8 Nikon VR I. That gives you a decent range, 18 or 28 to 200mm. Get a belt pouch or small bag in place of your back pack for the lens you are not using at the time and fire away.