In order to get the correct angle at the end of the gunnels you have to let the cross, then set a line down the center. Then fiddle around getting it just right.

Next step is to make some new decks. Here is a view of them from the bottom showing the arc at the interior edge.

The decks installed and the last of the ribs being fitted. These can only be fastened after the inside edge is shaped to allow for a taper which brings the outside of the rib closer to the gunnel in order for the outside gunnel to sit flush at the stem end. Sounds more complicated than it actually is.

A view of the canoe with the new gunnels.

Once the gunnels are finished being installed and the last ribs are secure, it is time to prepare and bend the replacement ribs.