When you want to keep mechanical brake, you need to space the motor from the motor mount to clear the rear caliper brake.
So what you have to do is order the normal Neu frontplate
from RCMonster but leave a note to Mike that you want the brake spacer to the place, and he'll make it to you, no additional charge
THis brake spacer is 6.45mm, so you have lot of space to make bearing hole and keep an 1.4mm lips.