Welcome to the forum, as an interesting note, have a look on YouTube for NSR250, and you'll see a Korean guy popping wheelies up and down a main street.....fascinating to watch
Parts are still accessible. If you can read Japanese, then you can get them from Japan. Otherwise, TYGA Performance has a good supply of new and used parts for them.
There's also a few of us here in Australia, one or two in Malaysia, Singapore, and Hong Kong.