It's hard to say. The choice day for riding is looking to be Saturday if the snow comes in like some of the forecasts are saying. Of course the avy danger is going to spike *sigh* yet again because of it. Still there are zones that are reasonably safe to travel and ride in. A lot of them just off of the pass, so quick easy laps. Ride down to the road, hitch to the top, skin up, and repeat.
I'd be happy to show you around if schedules can work out for that.
As far as Winterpark goes, it has a few longish flat trails. Corona Way is the worst, but it's the way out from some excellent runs. It's one of those that if your board is waxed and you point it, you generally make it to the Challenger lift.
Turbospartan, unless you are in the industry or media in some way, SIA is a closed event. It's where manufacturers generate a good portion of their sales from retailers for the next year.