Charles is right, $400 is the going price, you do have to buy the whole clutch and there isn’t a legal fix. The plate sort of works but many are still breaking pins. Most of the guys breaking pins are masters, not internationals. Most of suspect wieght is the culprit.
We will be having a replacement pin avaiable soon but it will not be legal for either Tag or RMax. But it will give you a clutch you can use on practice days or at club races who don’t care that you replaced the pin.