An update: I recently bought some C-41 Flexicolor Dev from 2 sources: Pakor, and Adorama. This is the box to make 5 gallons of regular C-41 dev. Pakor has it for $23, Adorama for $29, but shipping is much different: $9 for Adorama (no hazmat charges) for UPS ground, $42(!!!!) for Pakor, including hazmat charges, for UPS ground.
So although Pakor is a little cheaper on the actual product, the shipping is egregiously high, so buy it from adorama if you are in the market for it. Just an FYI.