You have two choices:
1. Get your one repaired - Axel repaired one of my MMC2s which had a cantilever snapped off - works perfectly and uses what must be original parts.
2. Get a Soundsmith replacement SMMC2.
The repaired one will sound like an MMC2 - the Soundsmith one will be brighter and sound more dynamic. Some think this is fatiguing, others like it.