As for the circumstances: I'm using most of the common mods out there. Tactics, Ascension, etc... And I AM using SK, but only to "fix" the single-player NPCs into what I'd like them to be and for Kit-multis.
The main question I have is, how many people do you REALLY need? I know that one can indeed solo through BG (done it a few times) but some of the tougher battles simply require NPCs (namely Solaufein, against the dark guys). Also, Ascension is rather tough to beat in Solo-Mode.
First, I was thinking of having a party of only two, PC + Solaufein. Probably Kensai/Mage/Thief (Katana) and Berserker/Cleric (Flail/Hammer). That sounds sufficient to me, but I'm not sure whether one or two additional NPCs might further increase the power-level of the party.
Another option I was thinking about was the following party:
Kensai/Mage
Ranger/Cleric
Assassin/Mage
Archer/Mage
I'm not sure whether this party is stronger than my initial gang of two. I found the Archer/Mage to be quite ridiculous, as well as the Assassin/Mage. Using Mislead for backstabbing is just too tempting (especially using Staff of the Magi / Staff of the Ram). I don't think there's need to discuss the power-levels of Kensai/Mage and Ranger/Cleric.
As for the equipment, I'd head for the most retarded stuff I can find. And there's my next question:
Celestial Fury+5/Belm+2 vs. Celestial Fury+5/Sanchuudoku+4 - which is better? It's common knowledge that CF/Belm is powerful, but I find the Sanchuudoku to be equally ridiculous, if not better. I basically get 2 CF/1 Belm attacks opposed to 1 CF/1 Sanchuudoku attacks (counting 1 attack/round). But we can leave Belm aside, since it's both a rather weak weapon and it probably won't fit the proficiency anyway. Plus, you SHOULD get more attacks with Sanchuudoku as well later, since you have Grand Mastery. So I think the damage is higher and Sanchuudoku's special effects are also quite nice.
In case you wonder, the rest of my party would use Flail of the Ages +5/Crom Faeyr, Staff of the Magi/Staff of the Ram and Bow of Gesen/Tuigan Bow. By the way, do you really need an alternative melee weapon for the archer? I guess it's no problem adding some spare proficiencies for Halberd (Wave) or Spear (Ixil's) or the likes, but do you really need it?
So, is that party stronger than my two-man group? Or are THREE guys better? Or something else? I'm looking forward to suggestions, experiences and ideas!
Also, to prevent you from asking