The selection of a case and power supply is ongoing. I ruling out cube cases as the location of the Home server doesn’t suit that shape. Most of the mini-itx case I’ve seen come with a 300W psu which way of what I need and also PSU may not be that efficient running at low percentage of there power. So I’ve decided for the PSU to use PicoPSU-80 which is 80W which should be more than plenty. They also claim a high efficiency at low load which is what I’m looking for. I’m putting of the selection of a case for the moment.