Need help planning a Valley of Flowers Trip

Hey guys

Me and my few friends are planning a trip to Valley of Flowers but we're a bit confused about the travel and stay arrangements there..... We'll be driving from Gurgaon by car so reaching the area shouldn't be an issue... but we wanted to know

What time does the Valley of Flowers trek start??

Till what time are entries allowed???

How long is the trek (in km)???

Are there multiple treks/routes or just one main trail??

Which place is best to stay near the trek... Ghangaria, dorms, budget hotels, etc.?

Any recommendations for cheap stays?? Roughly what budget should we keep per person for the trip?

Would really appreciate any tips from people who've been there recently

Thanks!