C88+ or C120 + refillable cartridge or continous ink system
If you can find epson C88 or C87 , go for it. It's a 4-color printer, very reliable printer. If you cant, get a C120. It's the replacement of C88 and it's faster than C88 when printing doc since it has dual black channels.
You will be able to cost down the whole thing if you get a refill kit or continuous ink system.
As for the refill kit, you'd better ask the 3rd party ink quality also make sure the chips can work with your printer.
As for the Continuous ink system for these Epson printers, I suggest you take a look at InkRepublic.com , I have been using their CIS on my epson printer for many years, i have saved well over the cost many many times over.
Good luck!