Hi @GarettHunter,
Great question!
You can set up all adjustments you stated by using the island settings device in UEFN or jus going to island settings in FN 1.0.
To stop PVP Damage you will want to turn off
PVP Pickaxe Damage
To make last person standing wins
You want to turn on
Last Standing Ends Game
Read more about island settings here
If you test and find out that last standing ends game is not working when you do this setting, then consider creating your own game win conditions by using a tracker, player counter and end game device.
Hope this helps!
Dragon