Me too, i have the same problem,
How can i restore my vWii to it's original state?
Anyone has original dumps of fw 5.3.2 cIOS (249,250,251) wads, that i could use to restore them prior to d2x install?
Or do i need to use AnyTitle Deleter to delete them or something else..?
The "original" doesn't have any cIOS. You can't "dump a slot if nintendo didn't install anything to that slot".
Therefore, there's nothing to restore or reinstall to get a clean vWii without cIOS.
The only way to get a clean vWii back is to delete the cIOS manually (AnyTitleDeleter for vWii). But be careful as it's a dangerous tool and you could end deleting required data for vWii to boot.
Why do you want to delete cIOS you installed?
Keeping them doesn't block vWii or WiiU normal use.
It's not recommended to delete an IOS.
Edit:
Users shouldn't install cIOS randomly by following guides if they don't understand what they are doing, what they need, and why they need them.
I understand that guides are there to be as easy as it can for everyone to follow without understanding what is happening, but reading and learning what's possible first before hacking a console is always a good idea.
If you only wanted to launch homebrew or Gamecube backups, you don't need cIOS at all.
If you want Wii backups from SD or USB, you need ONLY ONE cIOS, not three of them.
Installing 3 cIOS while not needed them is a little absurd, waste of time and free space, multiplying risks of brick by 3, especially when you want to delete them shortly after installing them.