i have a h9 1.20 cap 232 that im wanting to fly imac/3d with my target weight is 11-11.5 Lbs. What engine would be the better choice for this plane. Saito 180 or a moki 1.8

Im looking for reliability and quick throttle response for down on the deck hovering and a some what descent run time at least 15min. Also what prop would you recomend for both and what size fuel tank?

What about a 3 blade or 2 blade?

Thanks