Answer:
The exact performance you need is dependent on a large number of engineering factors, but around 2:1 initial thrust to weight
Explanation:
The acceleration due to gravity on the surface of the Moon is approximately 1.625 m/s2, about 16.6% that on Earth's surface or 0.166 ɡ. Thus the intitial interia doesn't change from when on the moon compared to earth but rather in free-fall when inside a space capsule.