Hi, Day 1, take bus to the hotel from airport for the taxi fare is nearly 300HKD I guess. You can take airport bus A21(33HKD) and get off at Hong Kong Science Museum, Chatham Road South. Then walk along Observatory Road to the hotel. Take bus 8 or 8A at Hong Kong Science Museum Station and get off at New World Center Station. Walk 5 minutes to the svenue. Take bus 203, 260P (4.4-7HKD)from New World Center to NELSON STREET MONG KOK. Or walk to Tsim Sha Tsui MTR Station and take metro to Mongkok (5HKD).
Day 2, Rosary Church is the nearest church, opposite the Hong Kong mUseum of Hisotry. You can walk there from your hotel. Then walk to C3 / P1 exit of Hung Hom MTR Station. Take MTR to TUng Chung via Nam Cheong. 19HKD per person. Then take Ngong Ping 360. On the way back, take MTR from Tung Chung to Central/Hong Kong. Then take bus 15 at Central Star Ferry to the peak. 9.8HKD to the top of the Peak. Back to Central and take MTR to Tsim Sha Tsui. Then walk back to the hotel from Exit B2.
Day 3, Citygate Outlet is next Tung Chung MTR Station. To disneyland, get off the mtr at Suuny Bay, one stop before Tung Chung Station. Then change to Disney Resort Line. You can decide which first.
Day 4, Tram way is in HK Island. You can take bus 114 to Causeway Bay to find trmway.

Thanks so much for the help!