Party dilemma

I'd actually like to model by party after Dragonlance, but think I run out of room and would like a more balanced male/female party. I'd like as much personality interaction as possible and like playing a pure mage as my player character. Here's what I was thinking initially:

1) PC - mage
2) Imoen
3) Ajantis (reminds me of Sturm Brightblade who I really like)
4) Kivan
5) Yeslick (reminds me of Flint Fireforge)
6) Edwin (reminds me of Raistlin Majere)

But this leaves me with a lot of dudes, two mages, and not much healing. I've played through BG1 once a long time ago and never really liked Khalid & Jaheira much and killed Minsc upon meeting him without knowing how popular his personality is, although I don't think he really fits my play style as he's a little too comical for me.

So I have some questions for everyone:

How much personality does Edwin have? I like that he reminds me of Raistlin.

How much interaction do you think this party would have with each other?

Is two mages too many?

Should I figure out a way to fit Branwen or Viconia into the party?

Any other suggestions?

Thanks!