The fight with pirates Options

[Aro]

Hi all.

I want some help with these guys in the tavern at the Docks. They are very tough. My party is:

Vagrant PC with proficiency in clubs and uses the +3 acid one from Trademeet
Valygar
Anomen
Jan Jansen
Edwin

Jan and Edwin can cast only 5 lvl spells and less.

That mage casts Remove Magic and emotion and abi-dalzim, and my characters die very quickly. The captain I cannot kill, he's scary. Help! My fighters deal very small damage to him.

I want another party member, but all NPCs are so weak. Any recommendation?

And where to find a permanency scroll or manual of elaboration or scroll of memory? I want a scroll for the club +4. It costs 50 000, is it worth it?

What weapons to buy?

[Aro]

Thank you critto.

My mages leveled to 12 and I set difficulty to easy and killed the pirates, those adventurers in the promenade and Lilalcor monsters and slavers in slums.

I read some spoilers here and also googled Improved Anvil. I found tons of spoilers on biowares forum and got some more permanency scrolls.
Maybe I should start with a different party? The vagrant looks powerful later on, but how about this:

fighter-illusionist gnome leader with wisdom 18
fighter-cleric-mage or only cleric-illusionist gnome - advice please
sorcerer with wisdom 18 because Imoen is too far away
a bard - maybe Haer'dalis? or custom

I read that arcane magic is very important and with smaller party they will level up quicker and I won't decrease difficulty with this party.