Bolty,
Don't know if posting the entire LOA here is entirely appropriate, but someone might do it.
As for your other questions, pay will be in $AUD in accordance with the current EBA and rates of pay. Given that the divisor in SIN is forecast to be 180hrs and the fact that every flight will have some amount of overtime, S/Os could earn a little more than they do at present (unless of course they are pacific barons). A 2yr S/O for example would probably be earning $110,000 AUD. (working out a QF pilots pay is like asking how long is a piece of string though!)
180hr divisors mean roughly 90hrs duty a month, so 75-80 hrs stick/month would be about it.
TL