Yup, that'd be it. From the WL, there is a bus that runs to the TTC approx every 10 mins. From the TTC, take the Monorail to the GF. At the GF, there will be a bus that goes directly to DAK/BB...
An alternative... the DAK/BB bus route is WL/GF... so, you might be able to hop on the DAK bus, and have it take you directly there. However, with MOD in operation... it's not a guarantee that the bus will indeed go there.