Started this sports cruiser 2 days ago. Here we dont have balsa so im using whats available.
I hsed ply for my keel and bulkheads.
Ply doesnt work great with ca glue, but its okay. I will use pvc for the planking.
I hope i will get some ideas and you will fix me whereverim wrong.

Did some putty job on both sides. Still a lot sanding to do. And put some white paint inside. it will make it look bit clean and also work as a layer. Will prevent the water reaching ply.
Beside of it a small cabin cruiser.