Digital BW, The Print

I've just come back from one of Cone's PiezographyBW classes. I
highly recommend it to anyone thinking of going the Piezography
route. Highly.

Now I want to buy a printer and get started. What I'm after is a
factory refurbished 7000/7500 or even a 9000/9500. My
understanding is that a factory refurb. unit will have good,
tested heads, a full warranty, and Epson inks. It doesn't have to
be pretty - it just has to work.

Problem is, I don't know where to go to buy refurb. Epson large
format printers. Surely some of you have been doing this long
enough to know who the "players" are. Can anyone recommend a
company to deal with? Equally important, can you recommend
companies to avoid?

Thanks in advance for your help.