G'day Mate,
What makes you think there will be too much right thrust, fly it & see, & adjust as required.
when you fly it, trim for straight & level flight at full power, fly away from yourself & pull up verticle release elevator & watch what the plane does, if it goes straight up, then right thrust is correct, if it yaws to the left, more right thrust required & visa versa. try it into the wind & do it a few times to be sure.