Deathfist Slashed Belts as a Troll Shaman (Innorruk)

[Nagoya]

Hello,

I have a lvl 11 Troll Shaman (Innorruk) stacked with DS Belts and I'm not sure how I am supposed to go to Captain Hazran, any help?

If I borrow an invis can I just un-invis in front of him and do the quest or will he kill me?

I'm "threatening" to the Gate Guards at the moment.

Is there a mob I can kill to raise guards faction?
I don't care much about Freeport as a whole, I just wanna do the quest for xp lol.

Please help if you can, thank you.