Eastport pram

Hi, I have just finished building a CLC Eastport Pram. It is a fun little boat and rows very well and appears to sail well too with the spot it sail I made. However I am not happy with the helming position and am contemplating modifying the centre thwart and fitting a small longitudinal bench on the sides between the centre and aft thwarts. Does anyone have any experience or advice to offer please.