First of all the chance of your console getting bricked now or in the future will still be a reality. It can be entirely possible that new games , updates or firmware may render your hacked wii totally useless. There is absolutely no warranty whatsoever.
Here's a pack to enable homebrew on your Wii. I'm not sure if you can play backups now, but i've never been interested in that anyway.
And remember, all your actions are your sole responsibility.