Digital BW, The Print

I'm looking for a cold-tone pigment ink set that I can use in an Epson 4800.  I would 
prefer a greyscale workflow in Photoshop so I'm thinking one of the solutions with an 
external RIP would be ideal.

However, I have read several reviews that say that the (very expensive!) Piezography inks 
for the 4800 are not really neutral; they're more warm-tone.  Since I do mostly night work, 
that definitely won't do.  And I cannot seem to figure out whether any of the MIS ink sets 
will work -- I see sets for the 2400 that should work with the QuadTone RIP, and sets for 
the older 17" and larger printers, e.g. the 4000, but nothing for the 4800.

I realize there may be a bulk ink solution but I'm having a heck of a time figuring out what 
it would be, since if I tell Inksupply's cartridge finder I want everything suitable for the 
4800 it actually gives me at least two contradictory sets of empty MIS cartridges, one of 
which I'm pretty sure won't fit.  Also, I can't figure out if the chips in these cartridges can 
be reset, and if so how -- at $40 per, it could get pretty pricy if not.

If it's possible to use the MIS inks with this printer, that seems like a nice option.  If so, 
could someone maybe offer me a complete shopping list?  Or if the Piezography solution 
isn't as warm-tone as I've heard, perhaps that would work too; I'd appreciate comments.

Thanks!

Thor