Hi guys,
thanks for all the input. I have been talking to the local UiPath office, and with the above mentioned licenses they suggested that we do the following setup:
•1 Windows server A with SQL server installed
•1 Windows server B with Orchestrator installed
•1 Windows server C with Studio installed
•1 Windows server D with Robot installed
•1 Windows server E with Studio and Robot installed
For the future ElasticSearch they recommend a new windows server.
They say it is nice to have at least one server with both Studio and Robot, in case you have to troubleshoot.