I would go that way, and you may find you need to reduce further. Recommending drives is always tricky as there are so many factors thatcan influence how they work.
I like to test motor and prop combos in a bucket, with an watt meter attached, and also monitor the RPM, if the motor can't turn the prop at 75% of it's free running RPM or greater, then the combination is inefficient and you eityher need a more powerful/bigger or slower turning motor or gearing.