You'll want Kaho's for LH3. Most deffinately.
Since you have the gear for it already, I suggest just sticking with the BS/WS class for the time being.
They are indeed one of the best money makers there is. You should easily be making more then 1.5-2mill an hour in Nif. (assuming you're leveled)
Save up till you can get Kahos without selling most of your other gears.
Afterwards, either make a Champion - or a Biochemist. Those are the two classes that do best in Lh3.
For MvP'ing - Bio is quite a bit easier. For leeching however, Bios are too expensive, so Champs are quite a bit more effective.
You might wanna keep that Tifing Buckler, and that Deviling Mant; but everything else you can sell.
If you make a champ - go for either a TTHH, or TTSS (since some monsters are no longer demi-human)
Or browse the Champ thread for proper equips. It can be found in the Mechanics section.
Bio's are a little bit easier to gear out. You should focus on trying to hit Close to IC, and then get gears that will
Give you more survivablity, like Dark lord Sleipnirs. You may want to invest in a pair of DL shoes if need be.
turning mvp's to teleport again is annoying. /sigh
Oh? I love it. Maybe people will need to work together now instead of just trying to solo them all the time.