Digital BW, The Print

Hello:

I have two CIS questions:
 
I am changing an 1160 with a nomorecarts CIS and Generation4 inks with 
another ink set (probably MIS VM).  Mediastreet.com, sells the carts without 
the bottles or accessories(which I don't need) for $90.  Instead, is there 
any reason why I can't just pull out whatever ink is in the 4 bottles of Gen 
inks and fill them with the quad inks, running test pages until they run out 
the carts.  Will contamination be a major problem?

Next, Mediastreet.com also sells the 1270 CIS without the bottles, 
accessories or CHIP for $100 instead of $225 for the full set.  Do I need 
their special chip, or is there another way to use the system? I don't see a 
CHIP only price anywhere, or I would probably just purchase that separately 
since I have many 4oz bottles and accessories.

Happy Holidays to all!

-Andy Darlow