That's the trouble. Nintendo don't put it up on their servers so we can't download it. I always thouse the IOS38 that came with the installer was the cIOS but you dispelled that illusion.
It is possible to extract the cios from a modded wii and pack it as a wad. There is a hb app, but it does not work on the newer cios. Perhaps an older rev, just to get the system menu back up.
Before this goes to far, the wiimote will turn the wii on, yes?
From what I have read, the lu64fix is cios38 rev11 beta in wad form, also ciosfix is a cios in wad form, not sure which one. When I get home from work I can look at the files closer.
cIOS_fix is cIOS249-v5 in wad form apparently (from a thread in March)
Give this a try
Extract to a formatted sd-card
Download this to sd:\wads
And this to sd:\wads
You'll need a gc-controller
Boot the wii with sd-card in
Wadmanager 1.5 mod should start
Select ios36, try others if fail
Select ios249, or try any ios over200
Install system menu v290 (3.2e)
If all is well system menu 3.2 will load
Goto the 3.1-4.1 guide linked below and bring your wii up to speed.