I am also thinking very hard about buying a NTSC-Jap Wii dude and as for any region0 and region1 Wii games. The majority of them will never work on a PAL-Wii console if you had a modchip installed.
The best results on a PAL-Wii will be your own region games and backups to be honest. Probably a...
btw i feel this a good time to remind you guys that sea of thieves was made by rare, who also made DKC1-3 and DK64, alongside banjo kazooie and conker's bad fur day