You don't hang around Michael do when you have an idea..... lovely work
Probably teaching Granny to suck eggs here but you're going to have to be very careful when you start planking not to end up with a very wavy keel. Normally you would fit doublers either side of the keel, these doublers are slightly smaller than then the keel so that you end up with a step to lay the garboard plank on. Appreciate that you know you are going to have to plank either side of keel alternatively ..... I would suggest that you prepare both planks first so that you can glue in place almost simultaneously to minimise the twisting effect on the hull/keel.
Again being very helpful after the event Huh but sometimes it is easier to to increase the depth of the keel , gives you a solid base to clamp the Hull with when you are working on the topsides, then cut this part off towards the end of the build .
Gordon,
Starting something is the easy part, it's the finishing that seems to be the problem with many of the projects that I do, I suppose that is why I barrel on while the idea is fresh, before I run out of steam.
Like I said at the beginning this is going to be a steep learning curve

I missed the extra keel thing entirely.
I am planning on adding more card spacers between the ribs to add strength and stiffness. Perhaps I will add some extra keel on at the same time.
Granite,
was it that it left the interior non open with that central fin?
Yes the interior needed to be hollowed for the cabin, also the single sheets slotted onto the keel are a stronger method. I also think that there is some legitimacy to following even somewhat loosely the full size practice of working up the whole frames sections in pairs feel more shipshape somehow.
Marc,
There is definitely something seductive about the lines that are mostly only clearly visible at this stage.
Andi,
A small model in hand as you say certainly has a special charm about it. I have Donald McNarry's "Ship Models In Miniature." Where he shows full sized sailing ships that are fully framed and not more that 6 inches long.
So I will be looking for your start on a similar small craft then....? You need to help your aunt sit down.
Russ,
Yes I will explain, My understanding is that card templates have been used to determine the shape on full sized small craft, so I will likely be using stiff paper, maybe cover stock.
Ray,
Glad you are following along.
cheers Michael