I have the NTSC system and i find no trouble in getting the game as most of them are NTSC compatible.

You can go also to TCC [Technical Care Center] and they would modify it for you for only 250 Q.R [Sounds expensive] but you can play all the systems after that and even copied games.

The prices of the games here are between 200 and 300 Q.R.

Note:
They will add an additional part, won't replace any of your Wii original parts.