How does this sound
Drow bard with int16
half orc barbarian con 16
dradmaster of bane
rogue/transmuter with high alchemy
paladin of ilmater/sorcerer (I kind of wish to forget about advancing the paladin)
party must have six party members and six party member must rock

drow bard
dex20
int16
cha20
what do I need to lower
it would be a caster and party face

half orc barbarian
str20
dex18
con18
int1
wis16
cha1
he will be stupid, wilderness lore oriented, maybe with few levels of Druid Multiclass or without, what do you think

dreadmaster of bane, maybe Aasimar?
wis20
cha16
con16
dex->probably 3 or 9
str12
int10
how does this sound? Any multi options?

halfling rogue/transmuter
dex20
int18
con->low
str->low
wis->low
cha->relevant at all?
of course alchemy is necessary skill for one quest and I would like cha10 for speech skills and wis for saving rolls.
any point putting points in disable device/traps? Caster of course

Aasimar Paladin sorcerer
str12
con->basic
dex18
cha20
wis->basic
int->needed?
Ilamter for one quest, so I wish to take at least two levels of Paladin before sinking into Sorcerer
concentration main skill

six party member would preferably be someone who can fight, and it's interesting choice like Druid, Monk or Fighter/ranger/rogue or something you can come up.

It's probably too late, but I guess since no one has replied I'll give me two cents: This should work fine. Drow is generally not worth its level offset, but it's not terrible at all. Can't go wrong with this; easy way to crush everything in your path. You can also multiclass Fighter for more feats. Generally you want to have a decent strength on a cleric since they're solid front-liners. I wouldn't drop Dex any lower than 11, since a penalty there can be really painful. Charisma and intelligence are largely unnecessary, and you'd be better served by abandoning them to pump Str and Dex. A one level dip in fighter for weapon proficiency isn't terrible, but not needed. The level in rogue is unnecessary. I played with a single-class wizards and just invested cross-class skill ranks into rogue skills, and I was able to disarm every trap in the game. There were a few traps that took me a few tries towards the end, but that was it, and any lock he couldn't unlock the barbarian could force open while raging. I ran one of these and it's very underwhelming. If you are going to do it, I strongly recommend only one level of Paladin and maxing out strength. Dump intelligence, leave wisdom low, and try to fit in at least a bit of constitution. Ranger and Rogue are very weak in IWD2 rules. Monk is pretty interesting, although it's one-dimensional. Druid is solid. With both a Sorcerer and a Wizard one good option is to drop a whole bunch of hazards on the field (webs, clouds, etc) and use an archer to pick people off.

thank you Darvin. I did played a bit, but I didn't get far. I guess I can restart.