Hey,
I like the new Plasma Systemmonitor but am currently using Gnome as my DE.
I installed the package anyway, but noticed that it doesn’t work correctly, because some dependencies are not listed and thus missing:
"file:///usr/share/ksysguard/sensorfaces/org.kde.ksysguard.piechart/contents/ui/FullRepresentation.qml:32:1: module \"org.kde.quickcharts.controls\" is not installed"
→ needs kquickcharts
"file:///usr/lib/qt/qml/org/kde/ksysguard/table/TableViewHeader.qml:15:1: module \"org.kde.qqc2desktopstyle.private\" is not installed"
→ needs qqc2-desktop-style
After I manually installed this libs, the systemmonitor was working just fine 
Maybe you can add this to the dependency list of plasma-systemmonitor.
Greetings
