Two thoughts on the OT hammer for chanters - yes, you do want it; it's convenient to be able to bind near your hunting zone for a quick gate and retry (or death and retry) while still having an easy way to get back to pok. On the other hand, don't give a thought to ruining your OT faction as a chanter. You don't have to do any of the annoying factioning that most other classes do for this quest (bards and necros can ignore OT faction as well, for the same reason). The reason you don't care about faction for this quest is that you can simply charm the turnin mob (instant ally faction with said mob for charmer) and toss him a jade (bought in jewelry stores for about 5 plat). Bingo, free OT hammer.
Now, to use this hammer as a chanter - get your dex buffed up and slow yourself (more procs per swing), then duel someone in your party or borrow the backside of someone else's mob. With slow on and 255+ dex, it only takes a couple of swings to proc (quick tip - if you're in a situation where you're trying to gate anyway, use the bandolier to swap in the OT hammer and hit attack as you start casting; it's really nice to get your gate interrupted and still end up landing safe, albeit in OT - a quick uninterrupted gate gets you back to your target zone).
When the hammer procs, it lands you on the deck of one of the ships at the dock in OT. In front of you will be a beta neutral skelly that will not agro you - he's for a quest turn in. There's nothing else in range that will agro you. If you're KOS in OT, just cast levitate on yourself, turn around and head over the water to the POK stone. A word of warning - when you land, right in front of you is a hole in the deck of the boat; there's no direct way out of this hole except gating, so if you're a non-gating class and end up in this hole, you'll end up needing to agro one of the nearby mobs to re-proc your hammer. If you re-proc the hammer, this will get you back on the deck of the boat, but will not reset the zone agro - you need to get out of there before your mob tells everyone around to beat you.
Anyway, hope this little tip helped - go ahead and get your Charasis key, it's a fun zone, and good xp for your level range. Get your OT hammer too, since you're above 50 and it'll proc for you now - just be careful, as the mob you need to charm is fairly magic resistant; as a chanter I would see about bringing along a tank type to hold agro while you slow, root, and MR debuff him before attempting charming.