Joe,
All of my carrier planes have been built with removable wing tips to make them easier to ship. I typically go about it as follows.
I make the wings as normal except I put in double ribs at the break point with a 1/16" gap between the ribs. Then I add a 1/4" brass tube on the underside of the top spar that extends one or two ribs inboard and outboard of the double ribs. After the wing is complete I carefully saw the leading and trailing edges, the spars and the brass tubes apart between the double ribs. Clean up the edges on the wood parts and also the brass tube. Insert a carbon fiber rod into the brass tube and reassemble the wing. Glue the outboard portion the CF rod into the brass tube. When assembled, drill a hole through the spar and the brass tube/CF rod for a 4-40 screw. Attach a blind nut on the bottom of the brass tube, inside the wing, for the screw. I usually use a socket head screw and make a counterbore in the top spar so the head is sunk into the spar when tight.
I also add a tab and slot feature at the rear of the wing to keep everything aligned properly. After assembly I use clear tape to cover the gaps on the leading and trailing edges of the wing. Easily removable for disassembly.
The placement of the break in the main wing is about the width of the elevator. The benefit of all this is that you can now fit the airplane into a box size that does not limit out because it is oversized for most shipping methods. Assembly is quick and easy.