Customized Relic Item

I'm not very good at creating my own items, but how does this look?

Pelt of the Bear Mother

Price: 5,000 gp
Body Slot: Shoulder
Caster Level: 7th
Aura: Moderate Transmutation
Activation: Standard round (for Bear's Endurance and relic power)
Weight: 10 lbs.

This large bearskin cloak is almost too big for a human to wear comfortably.

While wearing the Pelt of the Bear Mother, you gain a +1 natural armor bonus. Once per day, and as a standard action, you can call upon the powers of the Bear Mother, causes the hair on the cloak to bristle menacingly, and bestow you with the Bear's Endurance spell for up to 7 minutes.

Relic Power: If the Bear Mother is your matron deity, once per day, you can polymorph into a bear for up to 7 minutes. The type of bear you can polymorph into depends on your hit dice, as per the spell.

Construction Requirements: Craft Wondrous Item, Sanctify Relic, Bear's Endurance, Polymorph, Barkskin