Can I put ArcGIS Server and ArcGIS Geoevents Server roles on the same machine?
Presuming I have enough resources?
Can I put a Spatiotemporal Datastore on the same machine?
Are there implications with installation and configuration?
Does someone has such an experience?
That is possible but not advised, especially if it is Production system. They could all end up competing against each other on the same machine.
What is the goal for this configuration on a single machine?
Will it be a physical or VM machine?
Here are some resources to review:
Hope this helps point you in the correct direction?
The goal is evaluation of the software.
It will be a VM.
I am aware that the single machine configuration is supported but not recommended by ESRI.
I am mostly concerned with installation/configuration complications.
I would think that you should be ok if you follow the documentation for the configuration of the software components. I would also recommend installing all the latest patches for the best user experience.