Once you have the Blue Ribbon, you're there.When you take the elevator to level # 9, and you go out and kick down the door to your left....unless you either get an encounter of Earth Giants, Will-O-Wisps, Frost Giants, or the ocassional Greater Demon....simply run away and kick down the door again until you encounter one of the above monster groups. You can do this all over level 9.
Then use the same stategy for Level 10. On level 10, I don't fight anything that isn't a Poison Giant, Will-O-Wisp, Greater Demon, Frost Giant. If your characters have 100+ HP, you'll do fine in this strategy.
I just lost my top fighter at 783 HP. He was Level 104. Old age....oh well. No cheat programs used.
You just should be a little picky about who you choose to fight.
Happy Days,
Duck