First, let me say that i think you're wasting your time and money. It will cost about the same as a b16 swap to put itb;s on your d-series, and the stock b16 wil still smoke your itb'd z6
CBR 929 ITB's are a STUPID close match. 2 and 3 are just slightly off. you can get a set of those for about 500-1000 on ebay.
next, you need a stand alone
next, you need to figure out how to idel your car
next you need to figure out how to hook up everything that runs off vacuum- aka 90% of your cars accesories, fuel, and emissions stuff
now, you build a D-series head that can actually USE Itb's- hold revs to 12k... aka- never going to happen in a d-series. 9 is pushing it. cam overlaps are just too restrained on the single cam...
itbs will start being being effective around 5k, and won't make any real power gain until 7k