No. I don't think you'll be able to sell it now that you've broken it.
System Menu v290 is from 3.2 and woiuld necessitate installation of IOS30 prior to installing System Menu. Maybe you didn't do this.
You could try savemiifrii to autoboot something but I find it unlikely that it'll work.
If you have a newer Wii (purchased in 2009) then you've downgrade bricked it as new Wiis cannot go lower than 3.4 as they auto brick.