Your idea is great !
i would also add:
- Metal Foundations which dont get destroyed but are expensive (20 Metal or so)
- Sitting on Chairs (these little things make Games awesome)
- Maybe a Bench
- Fishing Net (which is like the normal net but for fish
- Doors and Doorways
- Strong Wood Walls which have no light passing through
- Balista which you can sit in and hunt the shark with
- Music instruments like a guitar
- for getting your raft to another place maybe a Sail out of Thatch, Wood and Rope
- Rudder for steering
- CO-OP ! This game is the coolest game i already have ! But playing it with DEMP-Mod makes it neary perfekt
(But Demp mod has many bugs and does not save the inventory from other players and it would be awesome if you would get the dev from Demp to your team)
And please keep on updating ! Dont try to do to much at once ! And have fun ! We understand that this is your hobby and not your job ! Nobody wants you guys to quit or fail school or shit like that.