I currently develop b&w, and am thinking of starting to develop C-41. I'd want to use the Kodak chemistry with stabilizer rather than the 3-step kits that use BLIX. How hard is it compared to B&W to get quality and consistency? How toxic are the chemicals? Can you use the same tanks and reels you use for b&w? How cost effective is it? How long is Kodak likely to make the chemicals? Please share your experiences. Thanks.