Connection Times at SYD to/from VS flights

Hi
Not sure if this is the right place to post these questions but here goes.
As opportunity to collect FC miles out here is limited have decided to just cash in all my miles for two UC, first time in UC
, returns SYD to HKG in August for a little holiday and as we live in MEL and will need to connect from DJ in SYD with the VS flights.
Can anyone shed any light on what the minimum connection times are? I have not booked the internal flights as don't know how much time to allow.
Also I have read somewhere that access to the DJ lounge is granted if arriving and connecting on DJ on same day from UC LHR/HKG but what about connectimg to UC HKG/LHR?
Any help would be appreciated.
Rob
Not sure if this is the right place to post these questions but here goes.
As opportunity to collect FC miles out here is limited have decided to just cash in all my miles for two UC, first time in UC

Can anyone shed any light on what the minimum connection times are? I have not booked the internal flights as don't know how much time to allow.
Also I have read somewhere that access to the DJ lounge is granted if arriving and connecting on DJ on same day from UC LHR/HKG but what about connectimg to UC HKG/LHR?
Any help would be appreciated.
Rob