Which is why I doubt the Devs would code Wish into DDO as it exists in PnP.
That depends on if you are using non-core non-WotC supplements.
I never said anything that was incorrect or opinion. You stated a dozen Wish scrolls. 12 Wish spells would require at least 60k XP in PnP which would bring a L20 wizard with 190k XP to 130k XP; effectively L16, 6k XP from L17. Except, you stated the Wizard would do that once they hit L17 which means that your DM was fudging some rules by allowing it to happen (i.e. even if you were 1 XP from L18 you would only be able to cast 3 Wish spells before loosing the ability to cast Wish).
As for the OP: I disagree. Complete list of Named Loot on every iteration of 20 completions, sure. But not a complete list of +3 tomes. They are just random items and should be treated as such.