My Susan
Making constructional modifications at this early stage can lead to disastrous results and it always open's a big if not gigantic can of worms. ( I wish i had listened to these old wise words ).
Usual start for me, trace all the bulkheads and keel onto a tracing paper of some sort, i tend to use drafting film as it's reusable and if traced with a pencil, the tracings can be rubbed out and the film reused. If you have a long keel etc: then just "Selotape" with about an inch overlap, i have done this up to a keel length of 56 inches with A3 size tracing paper. The using a "pricker" as in something like a dentist probe or a nobed pin set into the end of a piece of 3/8"dowl, its like making up your "Join by dots" pricking through the drafting film onto your selected timber. Then the exciting bit follows, joining up all the marked picked holes with a pencil or ball point pen, ready for the saw. Make sure you holes are well pronounced as it may be hard to find when you start to Join the dots. ( I,m not laughing honest ). Now its time for the saw, and join the Rabbits bedding society, Making sawdust. Once it has all been cut the keel and bulkheads, time for a dry fit, and alignment . If it all looks as should be, then you can open or remove the innards of the bulkheads, not forgetting to make up the prop shaft doublers in the keel. I always tend to start at the Bow end and fix the Breasthook and first couple of bulkheads to make a good starting point, leaving it clamped up overnight.