Need help planning a trip to the Mountain

Hello, I will be traveling to here in April with my family and I was interested in staying overnight on the mountain to see the sunrise.
1. Can anyone advise on an easier route to the top to accommodate someone unable to hike for many hours.
2. Also how to make a reservation for a specific hotel on the peak. I was thinking the east peak as I've heard it is the best for the sunrise.
4. Is it possible to take the west peak cable car and hike to the east peak?
3. We are traveling around China so we will have a small amount of luggage, any advice on how to travel to the mountain with luggage?

Thank You!
Lindsay