Hi Charlie,
So, if you have same environments(SAP, Unix & Database versions) for both Target & Source Systems, you can proceed with standard system refresh activity to build a new system.
Below is the link you can check for standard guide.
https://websmp102.sap-ag.de/instguides--> SAP NetWeaver --> Release 2004s (or your release) --> Installation --> 2 - Installation - SAP NetWeaver Systems --> System Copy for SAP Systems Based on NW2004s SR1 ABAP
BR,
Avinash Reddy.