[FarQuirkan]

First V5 is typically a much better backend and Matrix a better PVR client so I'd start by recommending you upgrade your setup.  

It is certainly possible to stream IPTV services and m3u playlists through NextPVR.  I have also written "tuners" for additional services including Locast, Pluto TV and Filmon so some services are available and users are free to create their own.   However i know nothing about the Kayo sports addon or IPTV merge sorry.

It sounds like you can configure IPTV Simple and have its guide with the NextPVR guide but that wouldn't be the whole house approach used in NextPVR.  Not having access to an Australian IP would limit me helping you and if the streams have DRM they won't be useful since NextPVR is a recording PVR and needs to be able to save streams.

Martin

Thanks for the info. I know I should be upgrading but I've finally ironed out all the issues and so a bit hesitant.
I guess once I do, I can only try bring the Kayo streams into NPVR and see if it works.