Thank you for your reply.
There is a possibility of using a Bmax B1 (MaxMini B1 - Mini PC - BMAX) - a small computer (specs below) According to this topic (What is the state of Linux hardware transcoding with AMD CPUs?) that Bmax should then be able to trans-code as the CPU has Intel Quick Sync Video. (Intel Spec sheet => Intel® Celeron® Processor N3060 (2M Cache, up to 2.48 GHz) Product Specifications)
That should be also be powerful enough to run all other desired services?
CPU: Intel Celeron N3060
Graphics: Intel HD Graphics 400
RAM: 4GB Lattice DDR3
Storage: 64GB BWIN