From a good source.... M200 Series Pricing:
M200 (single gimbal capability) no top mount - $5,299
M210 (dual gimbal capability) - $8,999
M210-RTK (integrated RTK) - $14,999
So like 40-Large for a 210 RTK sporting the Z30 and XT-R.
ddddddaaaaaayyyyyyyuuuuuummmm DJI 3.5k for the extra gimble /...