I wouldn't bother with the complete Zeovit line (which starts with the start kit) unless you're planning a SPS dominant tank where an ultra low nutrient system will lead to ultimate coloration.
You don't need the reactor and the zeolites, and the whole shebang. If I were you I would post on Zeovit forums and ask them how to bring down your nitrate without using the whole system. They are very welcoming there, and find no offense in those who just want to use a few additives. However, I warn you that once you get into it and notice the dramatic results it is difficult to
not buy the product line!!
I am a HUUUUUUUGE skeptic, and it took me a few years to try it, but I started using a few products about a year ago, and I haven't looked back since.
You will have to take the UV sterilizer off line though, as it will kill the bacteria you are dosing into the water column.
You can always get it back online if you have an Ich outbreak.