I actually did a speedrun for the whole game, not sure if you knew that when you posted the times.
http://www.youtube.com/playlist?list=PL ... ature=plcp
I re-did the first two levels and cut off a few minutes by adding segments (previously I did them all in one run, meaning if I messed up I restarted the level) but I won't be uploading them unless I finish the entire game again. Not sure if I'll be doing that any time soon since I don't want to burn myself out of the game having already done 2 playthroughs (normal and hard) and then a speedrun.
All my levels were connected (on the same party), do you plan on setting up a party for each level, or what? I can't imagine you getting much farther with a completely unarmed group. I had a harder time with an under-geared group on easy than a fully-geared and fully-leveled group on hard.