[Nerull]

Actually, I've done this party through SoA before (played a human berserker dualled to cleric, but essentially the same thing). What I did was go with 5 characters (Minsc, Jaheira, Imoen, Jan, and myself). Then added Sarevok into the 6th slot when we got him (never finished the game, though...had system problems that corrupted all my save files). I then went back (without BGT or BGTutu) and played through with that same party (except I was playing a ranger/cleric), even dualling Imoen at the same point as she dualled in SoA. It is a good party to play through with.

I know you are thinking that this is tank-light, but don't forget that you can fight up front as well (you can wear all the heavy armor, and can cast buffs as well). Jaheira can tank as well with good armor (Ankheg plate in BG1, Red Dragon Scale in SoA). In fact, you could go with just the 5 (or even 4, if you go get Imoen right away and ignore Jan...just do enough quests to go to Chapter 4, and have Yoshimo instead of Jan). I've finished the game with a party of 4 before, so quite do-able.