AVSTSAR,
7 on is 7 nights on and sometimes you do work weekends,the a/c work for BA cargo.LEJ basing for all newbes and you may have down time there at w/es when your not working these trips.
An average month will probably put 30 hours in your log book but duty time may be high as you sit in the hub at night for hours.
A300-600(last 5)not decided yet but if this is the road you wish to go down then maybe contact with EAT LEJ may be worthwhile.