Looks good so far. The question now is, how are you going to mount the electronics?

RCM motor mount is an obvious choice, as well as the RCM battery mounts. Though I suggest to put the batteries at the rear, on either side (saddle-pack style), and the motor with the esc up front. See my layout below.

In my experience, this provides good balance. Also, having the motor/esc weight closer to the front end helps lessen wheelies.