Kodak's RA/RT chem and Arista appear to be functionally identical except for the packaging itself. But don't confuse this with the Arista room
temp stuff. I'm not aware of any books that are anywhere near up to date, but the older Kodak color printing manuals are still perfectly good with respect to general theory. With patience, you can find the mixing instructions and one-shot small volume drum specifications, with time/temp options, on Kodak's data base. But you probably won't be able to navigate their current website to find it. Some of these substitute chem companies might include it in their packaging too. I thinks drums are the easiest way to go if you want your life uncomplicated. Have good ventilation, regardless. If you have a decent colorhead, color neg printing is relatively easy and affordable to learn. There are no longer any simple analog ways to print chromes (slides), however.