QTR-Quadtone RIP

Hello Everybody, 
i´m interested in B&W Printing since two or three years now and do all
my printing with an Epson 4800 and the Quad Tone RIP using original
Epson inks, so I´m not a total newbie to that. So far I printed on
Epson Glossy Paper. Now I want to take my B&W printing a step further
and want to buy a special B&W ink-system for my Epson 7600. I need a
color Printer as well, so I decided to convert the 7600.
So my question is:  Piezography or MIS Inks ???
I want to print my panoramas as big as possible on Glossy and Matte
paper as well without changing tanks. As RIP I use the QTR also in
Future I guess, I´m satisfied with the results and the usability but
that's not a knock out criteria, I could use other Software too if
necessary. I think I don't want to tone my prints, so a system for B&W
only would work for me (no Sephia or Cyano Style …). The use of a
dedicated B&W System should give my prints a very high quality with as
much detail in Shadow and highlights as possible, fine transitions and
tonalities. I don't have a densitometer but a Gretag C1
Spectralphotometer and want to make my own profiles.
What would be your recommendation ?

Thanks
Florian