Digital BW, The Print

Sorry to ask this here, but I know that you guys are the ones to be most 
concerned about print quality and longevity.

Now that it seems clear that the major part of my printing (B&W) will be 
done on the 1400, I presumably will do color and digital negatives on my 
totally new and never used 2100/2200.

Question: which inks should I use for this, if I am to maximize 
longevity and gamut?

Louis