the name is "who-robbed-me"

i am looking for something that makes magic items the cost and caster lvls and the like.
like if i want a wand of fireball, it will calculate the cost of the item if i put in the caster lvl of the spell.
or if i want a ring of melfs acid arrow 3times a day it will give me the cost.
or fullplate+3 of invisibility and silence it will work that out for me.
and can make inteligent items and artafacts and cursed items