Wow, is about the only thing that comes to mind. You sure found an original way to brick your wii, so don't feel bad, you've developed a new method. I should probably add this to my list of things not to do.
The nand formater was designed to be run from boot2 bootmii on a fully bricked wii. Also adding boot2.wad to the format would be a very bad idea in any case as it would remove bootmii.
I am going to bet that the wii is dead. If you have a nand backup you can buy a nand programmer and flash it back to the nand. It is a big job, with many variables.