We have been working on (and nearing completion) developing our new Piezography Pro system, which uses two different ink tones to be able to use each individually or blend them in QTR with endless possibilities. There have been many difficulties we've run into during the development process, which has taken a lot of time and testing (and tweaking) over the past year+, but we've created something truly amazing (learning a lot in the process), and we're very excited to be able to release it very soon.
So, you can certainly try building your own dual-quad system using the inks you currently have, but I think you will find it to be a lot easier and quicker (and probably better) to get our new Pro system when it's released. With all the time that has been put into developing Pro, I would say it wouldn't be economical to pay us to develop a system for the inks you have installed in your 9800.
Keep an eye on our newsletters and website for new product announcements, Pro is coming soon!