>>2008749OP here
Alright, so you need to have the saw. You can take the saw and sharpen the back so then you have a machete too. You could snap off a few inches from the end of the saw and sharpen it into a knife for finer tasks/gutting fish.
The fishing rod is obvious, we are going to assume it comes with tackle obviously.
The tent is obvious. It's hard to recreate fabric in nature. It also has poles and screens that can be reused. It's an instant shelter that can save your life and then be reused into other things.
Lastly, water is #1. I would go with the water purifier, or the pot to boil water, but since you need water within the first few hours, the purifier wins.
Making fire would be your only challenge, you have everything else to survive.
Someone else post more of these or something new, this is meant to be desert island survival general