Hi Stephen
System monitoring workcenter will disappear in SolMan 7.2, it's pretty much a deprecated workcenter so I wouldn't really advice to put that in place as the solution.
I would advice you to look into LMDB reporting which is a successor of SMSY reporting which can build you such reports:
System Landscape Reporting in SAP Solution Manager
Finding Kernel Information for Technical Systems
Landscape reporting should definitely provide much more detail and options.
Best regards
Tom