A distinq feature of the bottomside of the hull are the coolingribs and they need to be on the model. For this I took polystyrin profiles 4mm width and 2mm thick. To get a good glueing result I shaped the profiles with the heatgun and pressing them to the hull, after cooling the stayed in the shape they need.
The bottom of the hull with markings where the profiles need to start and there lenght.
Fitting one side of the hull.
The pre shaped profiles.
The first 4 coolribs are glueed.
One side done.
and the other side.
the final result.