First of all.. awesome.
Secondly, I would ask if you are locked into this operator?
I'm an east coaster that is in the preliminary stages of getting plans together for something very similar. So none of this comes form experience... but plenty of day dreaming and web surfing.
I have started to lean more towards making it a cat trip. As Kill noted, you can get as much if not more vert in based upon all the research I have done.Terrain is just as awesome... cost a bit less and a bit more flexibility with weather. If you are sold on the nelson area Baldface looks absolutely amazing and the the others Atr3yu mentions all get sick reviews.
The other thing I have been looking at is getting to Revelstoke, doing some riding there to get your legs and then finishing with a cat trip with Chatter Creek or Mustang.
In terms of skill level as SnoWolf suggests its all about being honest and upfront. They will basically tailor the experience to your skill level. My goal is to get a large enough group to fill a cat.
Conditioning.. if like me, you aren't a gym guy, get a mt bike and ride as much as you can. There are also some leg exercises you can do with just an exercise ball that can really help. I have been lucky with a few of my trips to the pnw and co to hit on storms/powder and can vouch that even riding in-bounds at whistler and snowmass/highlands, your legs definitely fatigue faster in the good stuff.
Last edited by SnowRock; 11-15-2012 at 10:11 AM.