You have Limited Wish; you don't need Permanency:
Quote:
Limited Wish
Universal
Level: Sor/Wiz 7 Components: V, S, XP Casting Time: 1 standard action Range: See text Target, Effect, or Area: See text
Duration: See text
Saving Throw: None; see text
Spell Resistance: Yes
A limited wish lets you create nearly any type of effect. For example, a limited wish can do any of the following things.
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Duplicate any sorcerer/wizard spell of 6th level or lower, provided the spell is not of a school prohibited to you.
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Duplicate any other spell of 5th level or lower, provided the spell is not of a school prohibited to you.
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Duplicate any sorcerer/wizard spell of 5th level or lower, even if it’s of a prohibited school.
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Duplicate any other spell of 4th level or lower, even if it’s of a prohibited school.
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Undo the harmful effects of many spells, such as geas/quest or insanity.
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Produce any other effect whose power level is in line with the above effects, such as a single creature automatically hitting on its next attack or taking a –7 penalty on its next saving throw.
A duplicated spell allows saving throws and spell resistance as normal (but the save DC is for a 7th-level spell). When a limited wish duplicates a spell that has an XP cost, you must pay that cost or 300 XP, whichever is more. When a limited wish spell duplicates a spell with a material component that costs more than 1,000 gp, you must provide that component.
XP Cost: 300 XP or more (see above).
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Empahsis added)
And then note that the Permanency is a 5th level Sor/Wiz spell, and the lowest XP cost on the table is 500 - so no matter how you slice it, when you use Limited Wish to duplicate Permanency, the only recourse you are using more of than actually using Permanency is a spell slot two levels higher - which is renewable.
Hmm... what would be the best familiar for Jason....