To get this working u would need to do one of these:
-Repair disk drive and use smash stack
-Repair disk drive and install an update from a game/disk, then use a different exploit like bannerbomb or letterbomb
-Resolve connection issues and use...
I haven't seen one. Why not make one? Build a forwarder dol using modmii, find a base channel u like and inject it in it, then customize it using customize mii, or go crazy and use even more advanced tools to really make it your own
All the disk based exploits will require u do a update first iirc.....
but actually smash stash advertises to work with all system menu versions, that's a pleasant surprise
Yes. But your wii nand will have a lot of content moved (not copied) to wiiu. If the wii has been homebrewed with a recent nand backup, the backup can be restored after the transfer so the content will stay on both consoles