As i mentioned before. i really look forward to this. should be a fun experience as long as the community works together (as in no trash talk). I agree with my friends that it should have high rates for taming/breeding and resource gathering. since it's pvp you're expected to lose both buildings and dinos so the high rates would help encourage people to rebuild instead of giving up.
Mod suggestions that come to mind are Bore Water Kit - so people can build wherever they like instead of being stuck to a water source. Mini Industrial Forge so that you can build comfortably without having to house a huge Forge around your base. As Jonesy mentioned a meat spoiler would be useful as well, and maybe Utilities Plus would be useful as well.
I do not recommend kibble table or the tek stuff from S+. reason for this being that Tek should still remain something that can be achieved through hard work and dedication not an easy thing. Plus the kibble table even though useful, not necessarily important as if the taming rates are high kibble won't be needed, not to mention dinos will die at some point so no use in trying to get a perfect dino if it'll eventually get killed.
Apart from all that i do believe that the structure damage rates should be changed. During the week it should be made more difficult to do structure damage and during the weekend it should be made easier. Reason is most people work during the week which leaves them extremely vulnerable to attacks, and even though all is fair in war it still doesn't make sense to attack someone who is at work. which is why if someone decides to still attack an offline person, this way they would have to use a whole lot of resources to do it, while during the weekend most people could be online and as such it would be the best opportunity for raids and defence. I do not think offline raid protection makes sense due to the reason that if there is a two man tribe and one of them is working, the other cannot log on to farm or build as that would leave him vulnerable to attacks and makes him a much easier target. The reasoning behind my suggestions is to keep pvp as fair as possible, so not everyone would agree with me which is fine, but offline raiding or having a large tribe attacking a one man tribe is just pure cowardice in my opinion.