install mac OS on Ubuntu using Virtualbox in cloud

I want install mac OS (niresh version or some other hackintosh) on a google cloud version of Ubuntu that has 64 gb of ram. I want to utilize about 55 gb of that ram for the mac OS. I also need to use the Unity gui user interface and that will need to be setup by you as well. The ubuntu versions that are available on Google Cloud are: Ubuntu 12.04 LTS amd64 precise image built on 2017-02-20 Ubuntu 14.04 LTS amd64 trusty image built on 2017-02-20 Ubuntu 16.04 LTS amd64 xenial image built on 2017-02-20 Ubuntu 16.10 amd64 yakkety image built on 2017-01-03 If you can't do it on google but think you can do it on AWS that would be acceptable. There is an issue with VT-X for VirtualBox that you would need to deal with and I don't know if it is possible. It may also be possible to upload a virtualbox image like this: [login to view URL] but I don't know if that would work and if it will be able to utilize all the memory. We would have to work together using Teamviewer. And I need to be clear about each step. When the mac os is running, it is using the 55 gb of memory, and the steps have been made clear to me, then the project will be considered complete.