Hello, i have never did this before. Can you help me to set up this mod so it will enable pvp but disable base raiding ?

My friend you can do that but it takes time.
You have to search google for the game's entities. Once you have the codes, something like - barricade.stone - you can go to the file part that says "entity groups" and add a new group. You can call it bases.

Then you have to find all the items you want, windows, doors, ladder hatches, etc...and put them code on the "members" part.

After that, above on the "rules" section you just have to add a new line saying "players cannot hurt bases". Not sure if you need to add "anything cannot hurt bases" too but try with or without both of these.

Finally change the "defaultAllowDamage" that appears as false to true.

I believe this is it.

none of that should be required

you should simply be able to use defaultAllowDamage = false

and add the rule `players can hurt players`

just make sure you delete the rule (or change it to the above) if it says `players cannot hurt players`