1. accommondation: 100-250 depending on the kind of room and number of people in one room x 3-4 nights
2. Round trip transportation from Shenzhen to Harbin: 2,600 or call your travel agent
3. Lift ticket: 350 for whole day and 280 for half of the day.
4. Meal: Budget 100 RMB a day
So I would say it is about 4,500-6500 for a 5 day trip during the Christimas. But it is very crowded and pricy on 12-24/25, so I would avoid those two days.