I prefer not to recommend any specific companies, but I will recommend you buy the CIS from a company based in the US and not from some eBay auction. While you will not be able to find a CIS that's built in the US, with a States-based company you will have a CIS that is less likely to leak or otherwise fail to work, that has quality aftermarket inks, and troubleshooting support if you need it. They have tested the systems and have put together what they think is the best combination of aftermarket parts for the CIS to work.
People do buy systems off eBay with no problems, but if you do run into problems you won't get any help with it. Also, the preferred inks are Image Specialists, which is higher quality and much more likely to be a good match to the OEM inks.
People do buy systems off eBay with no problems, but if you do run into problems you won't get any help with it. Also, the preferred inks are Image Specialists, which is higher quality and much more likely to be a good match to the OEM inks.