Originally Posted by
LHR/MEL/Europe FF
but - as you are departing in business class you will need to make your own way to the plane. And you should be there no later than 20 minutes before departure (which may entail leaving the lounge around 30-35 minutes before departure)
As an additional information I would state that A/B/C/D gates are up to max 5 minutes walk from the FCL; E/F/G 10 minutes (for higher E (E7++) and G (4, 5) gates you have to walk fast to reach within 10 minutes