I think I have this right, but I wanted to double check as this is my first time really crafting a magic item. I'm looking to make a ring of Grace for my PLD. The idea of never provoking attack of opportunities is to good to be true. from what I'm understanding the formula to make a continuous use magic ring is; Spell level x caster level x 2,000 gp. With that formula it should be 1(spell)x 1(caster lvl)x 2,000, now i'm assuming I need to multiply that by 4 "If a continuous item has an effect based on a spell with a duration measured in rounds, multiply the cost by 4." Bringing this to a total of 8k to make the ring, right? That seems pretty cost effective to never provoke AoO's.