Those things have no effect on your chances.

The only thing that does is number of hikers, and that is only if, when your entry is processed, if that particular day's quota is nearly full, if your number of hikers is greater than the available slots, you don't get the slots.

The camping locations are only used in the rare situations when a party is reported missing or overdue, the camping locations are a possible place to send a search party. They should really collect that info only after you win the slots, when you pay for them.