How should I implement a Splunk architecture on a 2 virtual machine, development environment?

Hi, we have to implement a Splunk architecture (for a development/test environment). We have 2 virtual devices, and we should replicate this set: 1 Deployment server, 1 Heavy Forwarder, a cluster of 3 Search Heads, 1 and Indexer. What do you suggest us to do? Thank you very much