Is there any reason other than "convenience" and processing time to make the components a blix? Why not be "inconvenienced" a bit and just use them separately as the C-41 goddess intended?
Is there anything in one package that the other needs? I can't see anything but standard bleach or fixer components.
Here's the MSDS for ingredient review: http://freestylephoto.biz/pdf/Unicol...C-41%20Kit.pdf