If your not able to run a stock ecu with uprev or HP tuners (they supposedly picked up Nissan support a couple years ago), then you have to go full aftermarket to MS3, Haltec, AEM, Link, etc... Over on the NICOclub forum there is a build with a vk56/cd009 into a 280zx that the guy used an early Honda AEM 4 cyl ecm and repinned some wiring.
https://forums.nicoclub.com/my-560zx-titan-vk56de-powered-280zx-s130-build-thread-t547031.html
You could also check in the VK Nation Facebook group, there's quite a few vk56/45 swaps there into the later model Z cars and infinities. Lots of truck stuff but the ecm, headers, cd009 etc is all pretty much the same.