This post from a couple of years ago talks 787 rates. Ironically it was addressed at your handle Hawk circle though it appears you may have erased previous posts? Add 3% for 1 Jul 18 pay rises.
Trip length varies widely between fleet and even within the fleet depending on the base.
SYD A380 S/Os can do 10 day LHR trips, 5-6 day DFW trips, 4 day LAX trips.
SYD A330 S/Os generally do 3-6 day trips. BNE A330 S/Os mostly 3 day trips but can do the 6 dayers.
SYD 744 S/Os mostly 4-5 days as they’re mostly out and back. A handful of 3 dayers too.
I’ve not researched the 787 S/O rosters.
Commuting to your base seems to be the biggest biggest gripe among S/Os.