Digital BW, The Print

Well, my Epson 2200 died. I need to replace it.  My primary use for 
a printer is archival quality black and white wide format - either 
11x17 or 13 x 19.  With the 2200, I used Imageprint to get neutral 
B&W prints.  I use Windows XP.

I sell my work at art shows so archival quality is essential.  My 
options are:  (1)  buy an Epson 1280 and use with some third party 
archival inks (suggestions welcome) (2) Buy another 2200,  (3) hock 
a kid and buy an Epson 4000.  

I'm only going to be using this printer for black and white 
printing.  However, neutral B&W is important and archival quality is 
important.

Any suggestions as to which printer to buy and which inks to use if 
I go the 1280 route???

Thank you.

Elizabeth