The other thing I forgot to mention is this printer uses a different ink tank order to the IP 4600, which was the printer my CISS was designed for. I had to move these around a bit and then had to trim a couple of the silicone ink tubes to a new length. No big issue though.
I've just entered the world of CISS after experimenting with it about 10 year ago (unsuccessfully trying to make my own for a HP Deskjet). I will have to admit that I started out with an Ebay unit, althought it appears to be well contructed (Piano Book). I have successfully installed in a MX860...