Luke,
If you break the 5L kit down into (1L) sized portions, and then use each "portion" separately, the shelf life can be extended tremendously. Get some BROWN chemical bottles from a chemist(pharmacy), most usually will have them on hand, or can order them for you. Make sure they have vapor-free caps. Fill em up, all the way to the top. If you don't want to fill them up completely, get a can of "canned air", better nitrogen, but anything else than oxygen-laden air as a "topper". Store mixed chemistry in a dark, cool environment and I think you'll be surprised how long you can extend a 5L kit
Yes,
the digibase kit has BLIX, not separate bleach & fix baths:
http://www.freestylephoto.biz/660161-Rollei-C-41-Color-Kit-5-Liter
I've used Jobo(hand inversion, and rotary), stainless tanks/reels, Paterson(essentially the same as Jobo inversion, plastic reels/tanks), and large stainless "basket" style processing in the past. To me, the easiest and most simple are the stainless tanks/reels, and Jobo rotary processing. Right now I'm using a pro lab, but plan to eventually(when time and living quarters comply) re-start using a Jobo rotary system for my C-41 and E-6 processing, so I regain complete control of my film processing, and no longer have to pay for pushes/pulls

, both of which I use regularly on both C-41 and E-6.
Basically, I'm saying that DIY color processing, now in this day & age, is SOOOOOOOO simple. It, like changing a diaper, just "takes a little getting used to"

! Chemistry is CHEAP(even if you do it single-shot, which I prefer, despite the extra cost).
Another thing (I) would recommend: MIX YOUR CHEMISTRY WITH DISTILLED WATER. This takes out potential for pH and hard/soft water issues, but since it's so cheap I figure why NOT use it and reduce your variables

? (I just use regular (in-line sediment filtered) tap water for washes on C-41).
Best of luck with your foray into color processing. Take your time, have everything measured out before-hand, and again: TAKE YOUR TIME. Have a good watch/timer, and when getting started, have everything CLEARLY labeled so you don't grab fix(speaking from experience here

!)
-Dan