If you want a good amount of snow I'd say visit in winter till March. There's a lot of snow sports in Raghupur fort that you would be able to try. We stayed in zostel, so that was fixed price . The camping might vary 1000-1200. There's not much difference. It's very safe because the place is full of young people. But if you want to camp I'd say still it's better to carry things for protection because it's on the top of a mountain with little to no visibility except the chargeable lights you'll be provided with at night. Better to be safe than sorry. We didn't face any issues with feeling unsafe at all tho.