Building a new UCS system from template using PowerShell is well documented.
Below link is a method of synchronizing a configuration from an existing Cisco UCS Pod as Source to another as Target. Have not tested this out, but would be cool to build a system in the Cisco Simulator and use this PowerShell tool to build when hardware shows up. Also being able to create “pieces” of a configuration like vNIC, vHBA template, or Service Profile Templates would be a great option. Might have to hack it some myself.