With some additional modeling, and moving the stern and bow pieces down 1/4" but maintaining their shape, it looks like everything will piece together smoothly. But really all of this is speculation, as Jeff has explained, the real shape will come into it's own based on how the stringers sit when building.
Here is a pic of the bow and the stern. Keeping in mind that Sketchup is not great at building curved splines (at least I am not aware how), the screenshots here do not show the complex curves of the gunwale. Also in my haste, I did not add a relief for the seat planks as described in Jeff's books. Regardless, these models should give a pretty good idea how frame cross sections will sit with the keel, deck stringers, bow and stern sections.
A couple more views