All Equipment that is not off of the basic item set up must be created in the equipment creation area once approved you just simple have to post here stating what your purchasing, give all the information of the items and then right out the amounts just like you would as if you were purchasing a jutsu. Each ranks costs a different amount as shown below. Weapons cannot preform anything hire than there rank equivalent.
C-Rank Weapons/Equipment Cost 3600 Zen. Can preform C-Rank abilities.
B-Rank Weapons/Equipment Cost 12000 Zen. Can preform B-Rank abilities
A-Rank Weapons/Equipment Cost 34000 Zen. Can preform A-Rank abilities
S-Rank Weapons/Equipment Cost 100000 Zen. Can preform S-Rank abilities