Re: 1991 Sprinkbok 162 Pro Series
Well, 35HP is about 26KW, or about 8% over the rating. A 30HP would be about 22.4KW, safely under the rating and close enough that you would have to take careful measurements to tell any difference in performance.
If you already have the Honda 35 I doubt if using it would present any problem unless you are up against local laws regarding "overpowering" and nit-picky enforcers of said laws. Otherwise go for 30 or less HP.