I'm gonna suggest you take a look at
Piezography.com. They are a third-party ink supplier using epson printers...i believe the smallest they support is the R1400. I've been using their system for printing digital negatives on clear film since April in my 4880 and LOVE my output. No metamerism whatsoever. Makes great prints with 6 shades of black...if you don't need to make digital negs (for wet contact printing) you get 7 shades of black ink as opposed to 3 with colors mixed in...the standard epson load. Like no other B&W inkjet output I've ever seen. Available in different tones. I can only speak to the Selenium Tone set which has the profiles for digital negs, but I love the warmth I get from using it on Moab Lasal.
Check out the list of supported printers, and look for used printers on Ebay, Craigslist. I'd suggest the x880 series as the newest printers have changed their ink purge/power clean process to make it less attractive to use the continuous ink system that piezography inks utilize.
Even though the inks are available for the smaller (desktop) printers, the way the power clean cycle works makes the larger, "pro" printers more attractive due to their increased efficincy (in terms of ink). In other words, many users won't want to go with a printer smaller than the 3x00. Epson 3000 printers are pretty inexpensive on Ebay, 3800 would be ideal in a desktop profile, IMHO.
Like I said, I switched my 4880 (a beast, BTW) to Piezography in April, and I'm still loving the continuous tone, long scale, and crazy sharpness.
Good luck!