Hi

We're flying QF ADL - SYD next week (in business) then on a separate ticket on BA SYD - LHR (in F for the first leg if it matters). Will we be able to check our luggage in for the whole trip in ADL or will we need to collect it and recheck in SYD? I'm a bit concerned we'll have to wait for BA check in to open if that's the case as we get to SYD 4 1/2 hrs before BA departs.

Also can we use the Qantas airside bus to get to the international terminal (I suspect not) or will we need to get the train? And would we be charged the station access fee if only transitting between the domestic and international terminals (using Opal)?

Thanks