Digital BW, The Print

I've mostly lurked on the site and let me thank all of you for the time,energy & advice you 
so freely give.It's truly appreciated by those like me who might really benefit from your 
efforts. Thanks,thanks,thanks.

my dillema:

I print 95+% b&w. I have a 2200 w/OEM inks and use the Wilkerson (Wilkinson?) profiles. I 
consistently get a decided magenta cast and to estimate +green is inconsistent and paper/
ink costly. I'm (as you can guess) very frustrated and reluctant to spend another $500 for 
RIP sw of the MIS or similar ink setup. Any advice to cure this situation and encourage me 
to keep the 2200 is certainly welcome.

possible (logical?) workarounds:

1) spend $200 (the price of a used 1280 that I'd be willing to spend) and get Epson RIP
2) sell my 2200,get a 1280 and print BO
3) sell the 2200,get the 1280  and use Lyson Ink set

any other ideas?

your perspective on all this will be greatly appreciated. IE: what would *you* do?

Thanks again,

Robert