Looking a complete new wheelset to more easily swap between MX and ADV tires...
This is what I would think is a full set from Stark:
SMX1-RW-18, 18 inch rear wheel assembly without tire, $349
SMX1-BR-RW-220, Rear brake disc 220mm, $79.90
I14580-060012-08, Rear brake disc screw, $2.90 x 6...