Total time is not really important, as I understand it, since CV take people with around 3000 hrs anyway, some of them much more.
During training (3 months), you get about €3000. After that, with less than 600 hrs on type you get about €4000, then with 600 hrs on type (and more than 3500TT) you get to the 'normal'/'senior' FO payscale, which is even much better. Plus allowances of course.
If you join with 10000TT on the B767, as far as I know, you will still follow the payscale described above, from year one.
Regarding selection, they hire a lot now. The selection in Saarloius is running even weekends according my source...