Yeah the getting it premodded idea is DEFINENTLY out because I already have a Wii and I don't know if theres even anyone in my area that could mod it for me which is why I'm asking just in case I can't find one..
If you do end up doing it yourself, a hands-free type of magnifying glass could be useful... I was wishing I had one, and my eyes are good... You'll manage without, but try to keep the wires as short as possible, I made mine too long and it didn't work as well as it should of. (Had to power off to switch backups etc) As someone told me, practice on some old computer parts, it helped.
You might want to wait for Wlip, a solderless solution ... if you'll want to use WiiKey, you will have to solder (though not on the console itself, thankfully), but chips like YAOSM and Wiinja won't need it.