assuming u can't get the autoboot savemiifrii method to work described above, you can send your Wii (just the Wii, no cables), nand dump and keys to
[email protected] and he will be able to fix your wii for sure (the only exception is hardware failure, but that doesn't apply to your situation anyways).
He normally charges $40 for his labour, and he does amazing work (I've seen him work on a Wii in person before and I was really impressed). And since you're both in the US shipping costs shouldn't be too high.
Just email him for details.