Added a bunch of balsa bits along the edges, and then sanded them flush, to give some more surface for the cladding to adhere to.

Gluing 3mm blasa to the bottom of the boat, since I didn't have any suitable clamps I had to get creative with conforming it to the curves.

On the fuselage I did the same thing, anticipating that I was going to cover it in the 1 or 2 mm plywood.

It turned out that the corner radii were just too tight for even the 1mm veneer, and it kept splitting, so I decided to clad the fuselage in 3mm balsa instead. The zip-tie holes finally came in handy here.

Lots of test fitting to make sure the fuselage isn't warping

I am stubbornly insisting on cladding the top of the boat with the 1mm veneer, since it was given to me, so I put in some diagonal balsa cross-braces to support it as well as give more gluing area. It would probably be a lot easier to clad the top of the boat in balsa too.