Bob,
This time I disagree! Building a kit takes alot more skill than putting tail feathers and wings together. Plus I end up always modifying my kits. I do build from scratch and cut my own parts like you, but really isn't that about the same thing as a kit. The only difference I see is it's more time consuming. If you can cut balsa like you do when you build a stick built kit you can surely cut around a rib or what ever other part you need.