Hi again, if I understand you correctly, you want to re-model the yacht to an open cockpit design.
First, is the cockpit removable?
Second, if not, will you be able to cut it away without damaging the rest of the structure.
Third, have you done some model building before, I don’t want to make suggestions that will lead you to damage your model.
The principals are simple, removal of the unwanted area, use that to get the sizes and shapes to make a new cockpit to the design you want in plasticard or ply.
Then make or buy the fittings etc to finish it.
Refitting the new cockpit will involve some careful gap filling and painting.
You should also check to see if there is room underneath the new cockpit, it will be lower than the original.
Keep asking questions, we’re here to help.
Edited By Charles Oates on 17/01/2015 16:15:31