I just ordered the 60 size Cap 232 from Kangke

, and need some advice on engine choice. I want it to have excellent vertical, and to hover if possible. Also, I would rather use a four stroke.
I was thinking of a Saito 100 or 120, or an OS FS 120 with pump. I was leaning towards the Saito 100 because it is lighter, but I'm not sure if it will have enough power. Which of these do you think would be best for this airplane?
Thanks!