Digital BW, The Print

G'day all from Australia,
  I just bought the Epson 1410 (pretty sure it's the same as the
1400)as my first photgraph printer.  Funds didn't permit a more
expensive k3 jobby so I'm wondering if anyone has had ok results with
the MIS Ebony in the BO config whilst leaving Claria colours as they are.

I'm pretty sure it will print decent BO prints with the Ebony (QTR
Claria BO looks good to me... having said that I'm not a pro), but
will it still print in colour with MIS Ebony in the black position ?

I don't mind changing the black cartridge back to Claria to print
colour but will that drain all my ink away ?

I'll be displaying them in my house inside Acrylic wall mounts ... If
Claria gave me 80 years longevity, then I'm happy (I'll take good care
of the digital copies)... so do you guys think I really need carbon
inks ?  Do they look better than Claria black (I'm planning on using
Epson Premium Semi Gloss Paper).

Any advice on this would be greatly appreciated.  Thanks guys.

Phil