Even if you use wish or limited wish, the problem is you still have to pay the exp for it:
Which says to me that if you are duplicating a spell with wish/limited wish you have to pay the XP cost, regardless if the base spell or supernatural ability does not initially cost experience.
I would assume that when they said no components they were talking about V, S and M not XP. I know it is badly phrased, but that's what you get from Web enhancements, but again that is not my call.
SRD Limited Wish said: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.
Which says to me that if you are duplicating a spell with wish/limited wish you have to pay the XP cost, regardless if the base spell or supernatural ability does not initially cost experience.
I would assume that when they said no components they were talking about V, S and M not XP. I know it is badly phrased, but that's what you get from Web enhancements, but again that is not my call.