The first thing to do is raise the park entrance fee to $50. Then, to squeeze a couple of flat rides in, and maybe a roller coaster if the finances allow it. Other extra stalls, such as T-shirt Stall will rake in some extra cash. Then, players should advertise heavily on their parks and newly built rides as it will get cash back.
The next thing to do is hiring some extra handymen and mechanics to clean the park, with efficient patrol zones. Park rating should improve by Year 2, along with the guests count. The goal for this scenario is to get 3,500 guests in, so that requires some heavy advertising.