Digital BW, The Print

I recently acquired an epson 2200 to print Black and White images from high 
end drum scans. The 2200 is advertised to be Epson's best non commercial 
product: BUT I did not know of metamerism. (I had been using the services of 
a quadink Piezography printer:Epson 7000 converted to the Jon Cone carbon 
ink process. NO PROBLEMS with metamerism and the archieval images on 
Hahnemuhle photorag are elegant. Recently my printer relocated his 
business operation 1500 miles to the north. Hence my purchase of the 2200.) 
Epson technical does not have an answer other than metamerism is in the 
nature of  the ultrachrome inks. The sales staff at Samy's suggested the 
advanced version of ImagePrint 5.0 RIP at $1,000.00,  but did not provide a 
convincing demonstration during my visit. Anyone out there with a solution? I 
am using OS X on the dual processor G4 and running Photoshop 7. I print 
with the matte black ink for matte surface paper (Hahnemuhle photorag 308) 
and set the printer for Epson watercolor radiant white. No matter how I 
approach color management the prints tend toward green in window light and 
magenta in tungsten. NOT MUSEUM QUALITY characteristics. HELP 
NEEDED.