I would get an extra pair of hands to help close the crack and hold it there, then flow some thin or really fresh gap filling CA into the crack from the outside. Let it seep in a bit, then hit it with kicker or let it kick off on it's own if you can hold it.
That's roughly how we put Bobby Hunt's airplane back together at the 2011 NATs, except that his fuselage was completely broken in half and in two parts. Push it back together, tiny drops of thin Hot Stuff right on the crack. Then poke a few holes along the crack with a t-pin, and put a drop of glue in each. That alone would probably hold it. It should mesh the broken fibers right back together, meaning you end up making a bunch of very-shallow-angle splices. It will be stronger than before if it meshes properly and you get glue in all the fibers.
You can sand it down to bare wood, fiberglass over it with 3/4 ounce glass and slow epoxy, then refinish, if you don't trust the hot stuff. If you do that, make sure you go far enough in to completely bury the fiberglass below the surface of the paint, so you will be able to refinish it without leaving a raised bump.
Brett