I'm planning a customized, private 10-day tour of Flores for which I'm contacting small local tour operators. They will arrange a car and driver, an English-speaking guide and sleeping accommodations. It is difficult to know for sure, but the price they ask for these services seems rather steep at around 100€/day per person (I'm traveling as part of a couple), counting the cost of a car/driver (ref. Lonely Planet), accommodations (Booking.com), entrance fees etc.
Are pre-arranged tours like this typically priced high with a possibility to negotiate down, similar to 1-day activities in Indonesia (such as in Labuan Bajo)?