Absolutely

Depends on intelligence

yes

If you follow exactly every step on the wiiu.hacks.guide website then you shouldn't be scared about breaking it at all. It's way safer than a few years ago.

Yes why not. Its pretty safe to mod it but there will probably be some things not working and Its pretty boring but then you should also mod your vWii because there are many great mods and with the vWii there should not be errors