I would get off at the MK and take their boat over to FtW. You would have to get off the monorail at the CR, go down the elevator, then out the back and down to the dock. Much easier to just get off at MK and walk down to the boat dock from there.
As mentioned already....there are no buses to the parks from DTD. Does your hotel offer a shuttle over to the parks? That may be your best bet. The other issue is that the buses at DTD are very sporadic first thing in the day..there is little need for buses coming and going much before 10am. So, it wouldn't even work for you if you tried to get on a bus to the CR (for instance) and then walk over to MK....no buses running early enough for RD.
Fastest way to Cape May? Cab. A cab will take you about 8 mins and cost less than $10. Or, you can take the bus to DHS and then walk over to YC/BC (or take the boat).
To Boma....again fastest way?? Cab again. But, if time is not of the essence, take the bus to AK and then transfer to the AKL bus.