Bamabaxter
You have adjustment at both ends. Looking at Hart's photos first #5445, the brass/bronze whatever fork connector is adjustable which you have to loosen the nut on the bottom of it to adjust that fork. On #5432where the red circle is, look under that bracket connected to the rudder post and you will see it is a longer threaded rod for adjustment.
You mentioned there is a wood frame. Not sure what you are talking about but a photo is needed. Looking at photo #5342 where the fuel locker pulleys are, they are attached to a in a sense raised area from the locker wall. That is wood encapsulated by fiberglass painted with the same white gel coat. I am not sure what you have in that locker and if memory serves me, the pulleys are high enough so that the cables are above the diesel tank for your inboard diesel. I still believe you have adjustment. Check it out and let me know. Please forward a picture of the wood mount you mentioned in your fuel locker.
The wheel steering is the same set up as in the 260 and 270. Not sure about your wood frame though.