I finally finished my NetherBoat decoration!
I thanks you to appreciate my NetherBoat Mecanism (http://www.minecraft-schematics.com/schematic/1656/). So, it's an honor for me to share with you this Boat, in full version, always on Vanilla. It contains the same mecanism which allow you to keep the Nether acces close. Players must have 6 items to pass (you can choose them, but it must be stackable items). This boat run at 99% automatic and just need sometimes you put the chest empty (1/month may be).
Thanks to comment!
Good Luck & Have RedStone !