[Northraven]

Hey all. I got BG2 a few months after it came out, played it through to chapter 6, got caught up with other things and then had my HD wiped, losing all my saved games. About a month ago I decided to finally finish the game, bought ToB and told myself that I was gonna do it RIGHT this time (Last time through I did no side quests and hit chapter 6 sadly under-equiped, part of the reason that I lost interest in the game.)

Anyway, this time I lingered in Chapter two and did all the quests that I could find, with the exception of the Twisted Rune and the Haer'Dalis thing, I also skipped out on the Slave Lords as I had no need of Celestial Fury. I hit chapter three with all my characters at about 12th level and I went through everything on my way to the underdark like a hot knife through butter

Now I am in the Underdark, just about to do the Kuo-Toan Dungeon and my party levels are as follows:
Me Undead Hunter 13th lvl
Keldorn 14th lvl
Mazzy 15th lvl
Anomen 15th lvl
Imoen 12th lvl
Aerie 11th Clrc/12th Mage

My question is am I gonna lvl high enough to hit the old SoA cap by the end of the game? Are my characters far enough along lvl wise to beat it...I mean everything has been easy so far and I'm waiting for the hammer to fall on me .
My party is well-equiped and I plan to hit the Slave Lords and Twisted Rune when I exit the underdark to get the items from those encounters. Can anyone offer advice on the best way for me to hit the 2,900,000 cap before game's end? I was hoping to go into ToB with at least that much experience.

P.S. I'm doing the game with the difficulty set to core rules if that makes any difference XP-wise.