A tiller model is an excellent choice for a pontoon. Just because it is a tiller model does not mean it can't be mounted on the bow. 15 minutes to remove the screws and turn the head around is not a major engineering feat. If the tiller can't be easily reached because of the pontoon fence position, then a remote (corded or wireless) is a better choice.
the problem i have is my deck is only 18 inches,and dont think i want to cut my gate,if i had the motor on the gate would always have to be open.I know i would like the foot control better im coming from a bass boat,just not sure how well it would fit