You mention the 9900 (a 44") printer, but then the Canon ipf9100 (a 60" printer) instead of the ipf8300 (bigger gamut, better blacks than the 9100), as well as superwides like Mimaki (basically a big Epson)
Are you needing wider than 44"? If so you choices would be Epson 11880/canon ipf9100 or some of the wides you mention.
You also mentioned you needed "production" and quality", but you don't define quality other than largest gamut possible. chasing a huge gamut may be misleading because smaller gamut devices (such as traditional photographic paper) still produce beautiful skin tones and rich saturated colors. So while a 9900 might have a larger gamut than an 11880, you won't' see much difference in most photographic output, both will look terrific.
Using aftermarket inks will rarely land you in the same quality level, void warranties and while they sound cheap, ink costs are a fraction of paper and other costs so saving per print isn't substantial.
If you are interested in fine art quality printing the Epson 9900 and the Canon ipf8300 (both 44" printers) are the best that can be had. both have very large gamuts, but have strengths in different parts of the gamut. I've heard some say the inclusion of orange ink in Epson's HDR ink set benefits skin tones, so it might be worth looking at, but the canon will produce gorgeous skin tones and colors.
there are many recent threads that talk about the differences between the two technologies but output from either is as good as it gets.
If you need a wider printer you probably still are better off with the canon 9100 or the epson 11880, most of those using rolands/mimakis are more concerned with throughput and decent quality, not maximum quality and because they need a printer wider than 60". I've had Mimakis because I needed an 8 foot wide machine.