Ive been doing some research but could i get some advice/opinions/knowledge on my current ideas please?

Im planning a 20 day self sufficent hike of the Larapinta trail, it is about 225 kilometers long. Temp during the day is warm, but pretty bone chilling at night.

I have not made gear purchases yet so im hoping you guys can make up my mind for me. I will be carrying my own food, fuel and so forth.. no worries about water this time of year.

Backpack----- TNF terra 60
Sleeping bag- TNF Cats Meow
food--------- freeze dried style
tent--------- 2 person options is what i need
stove-------- still not sure

any help would be much appreciated, this is my first trip and my head is spinning from needing to get so much done.