Monkey madness should actually work, I've put a lot of work into that to make it start from anywhere
It doesn't show requirements in the client atm, but it will skip any quests you don't meet requirements for
That looks like the quest has already been started and progressed to the part where it should be in the boss fight, the script cannot complete many quests which have already been started as the area it's supposed to be in cannot be accessed; only workaround is to get to the part where it was interrupted at and run in debug mode (press F4 on the GUI, title will change)
I'm afraid I'm not currently doing trials