I am currently facing the same issue, although I am attempting to build a larger ship more specifically a third rate, using the hinge plate and curved slope technique for the bow. I am facing difficulties when trying to reinforce the shape from the inside as there is only 1 point of contact between the curved slopes and and the hinge plates. Do you have any suggestions as to how to overcome this. See link for image. https://www.tipsandbricks.co.uk/post/723-techniques-creating-a-rounded-boat-hull
P.s I did not come up with this technique nor do I take credit for it.