Its an intriguing question isn't it? Here we have two companies which together have all the moving parts necessary for a lunar landing and return mission. It would be fascinating if Bigelow Aerospace could put a habitat at the Lunar L1 point. Then SpaceX provides a boost to L1 capability, and Armadillo provides a transport service from L1 to/from the surface of the Moon.
1) Take off from the pad.
2) Loss of vehicle control (chute deploys), Loss of engine
3) Engine restart.
4) Attitude recovery after engine restart
5) Return to pad capability.
I had no ideas these guys were that far along.