I normally put off crowning chaotic until quite late--I really hate crowning chaotic at all, actually, because almost invariably I get something like stiff muscles + mana battery. I agree like moomoo's suggestion: wait until after you've done the nasty dive to I:66. No need to corrupt yourself more.
I think there is an alignment requirement on being assigned the unicorn quest that is worth considering too.
Hoping to win with every class, doomed. Archer, Barbarian, Bard, Beastfighter, Druid, Elementalist, Farmer, Fighter, Monk, and ULE Priest down.