[Aerich]

Yes, I noticed a little imbalance, but whatever...

I personally don't have a problem with that unless you spend an hour rolling each character or use Dalekeeper to up your stats to 25, or some such thing. One of the things you can do to mitigate/poke fun at the powergaming aspect is to do detailed character descriptions that explain why, e.g. your dwarf is so uncharismatic (toothache and penchant for wearing clashing colours) or why your fighter/druid is so stupid (tree fell on head). Let your imagination run wild.

With your multi-classes and six characters, it will seem to take a while to level up at the beginning. Once you get to monsters that give more than 1000 XP at a time, you will go up faster. You might consider playing on Hard difficulty up until the point you reached last time, as your familiarity should give you an advantage.

I know you're not entirely without bows, but the best bows are longbows, and the best shooters ('cause of Thac0) are fighters. That's ok, it's only one asset you can't use out of many. The quantity and quality of your spell selection will make up for it. Don't sweat it.

If you run into any problems, just give us a shout.