I've always had luck getting durian in Chinatown/Oriental markets -- they come frozen. I've also read that a pulpy fruit like durian should not be juiced.
I was wondering about juicing this but assumed it was like banana and avocado and couldn't be juiced, only blended. Anyone know? I don't dare experiment; I'm so crazy about that stinky stuff, I could break my fast and impulsively eat it!