Wow, many questions you have. I will try to help you all:
Day 1, the cheapest way is airport bus. It is Hotel Novotel Hong Kong Nathan Road Kowloon, right? Take Airport bus A21 and get off at Nanthan Road Nanthan Hotel. Cross the Road and you will find Novotel. The bus fare is 33HKD per person.
Day 2, Ocean Park will not take the whole day. I think it is okay from 10am-3 or 4pm. Walk to Jordan MTR Station from Your hotel and then take metro (8.5HKD) to Admiralty. Get out from Exit B and you will find a Ocean Park ticket office there. Buy ticket there. beside the ticket office, you can find Bus 629 (10.6HKD) which goes to the Ocean Park directly, 20 minutes later from Admiralty. You can get to Victoria Peak after that. Then to Avenue of Stars at night. Tung Chung can be put together with Disneyland id it is in you plan too, but need a whole day.
Day 3, You can take bus 15 or 15C, I can't remember, from Admiralty to Victoria Peak or Peak Tram. It the cable car you mean is the tram up to Victoria Peak or the cable car at Chung Tung to see the Big Buddha in Po Lin Monastery? Then get back by the same bus to Central. Take star ferry to Tsim Sha Tsui. Walk along the Victoria Harbor till Avenue of Star. You can see Symphony of Light show at 8pm, at the avenue, on the ferry or Voctoria Harbor. Up to you. Then you can control your time.
Day 5, you will go back from Macau to China Ferry Terminal in Tsim Sha Tsui, Kowloon. Then walk 10-15 minutes to the nearest mtr station. Take MTR to Lai King and then change Tung Chung Line to Sunny Bay. Take Special Disney Line there to the park. Then there is free shuttle bus there sending you to the hotel.
Day 6, take mtr to Tsing Yi first and then find the free hotel shuttle bus there outside the mtr station. I think you should inform the hotel in advance that you need to take the shuttle bus.
Day 7, the hotel has shuttle bus to airport directly. You need to make reservation directly. It costs 95HKD per person.