Apologies for only getting back to this thread now.
Thanks for the replies. I think the answer will be to start using the aux load capability on the inverter like @Achmatsuggested.
In the mean time I have limited my max discharge current on the battery side to 30A as I know my essentials will never go above 1500watt.
I have also used the time settings to make sure that the battery cannot drain too much during the night leaving me in the dark should there be unexpected load shedding.
These settings seem to be working quite well for now but I will definitely need to pull through another cable for the aux output and get the full functionality I'm looking for.