yes, the wave shild does not use I2C so that will be in the digital pins as needed.
the other two divices do use I2C though so to wire them it should look like this:
A4------4.7K pullup resistor-----RTC----4.7K pullup resistor-------lcd+buttons
A5------4.7K pullup resistor-----RTC----4.7K pullup resistor-------lcd+buttons
(the ------ is the connections, wire)
is this the correct way to wire the pins?