Magic enchantments suggestion

I would say any enchantment as a default would require 10 magic powder, and since the highest level enchantment able to be acquired without cheating is 5, you would only ever be able to use 50 at a time. The actual level of the enchantment though should depend on the -item- not the magic powder. That's just what binds the natural properties of the item to the armor. So say....5 feathers 10 magic powder, that's feather falling 1, 10 feathers, 20 magic powder, that's lv 2, etc etc....iron ingots for protection, magma cream for fire protection on armor/fire aspect on weapons? You'd have to code it to know what kind of item (armor/weapon) you're trying to use it for each time. Also, the enchantment table could be constructed from a base of magic blocks, which would be 3 stone, each surrounded by 8 magic powder and smelted. A diamond in the center, and two redstone beside that to enhance it's magical directive ability?
RDR
MMM like this, R = redstone, D = Diamond, M = magic block.