Can you pay for a person at the gate

You can pay for skiing online or at the mountain. if you are tubing on a weekend, they sell out. Buy ahead of time.

I don't think so but you can call them directly to double check.

If you go on a weekend, get ahead of time.

Yes, but if it's full they won't let you in,

Yes, there's a ticket kiosk by the parking lot

Yes