So today I went for broke and scarfed the neck.  First, I marked up all the locations, from the tailpiece to the end of the box, to both inside locations, the bridge location, the heel, the nut location, and the headstock length.  Using the suggestions from the forum (thanks to all!) I located the scarf area and made the cut using a flush cut saw from Harbor Freight.

I placed the two cuts in alignment and used a belt sander to flatten the cut area.  I used a miter saw to cut the neck to final length and to cut the doubler for the heel area.  I also sliced up the wings for the headstock at this time.

Gluing up was an adventure.  I got the scarfed area stabilized. Then added the wings to the headstock, then the doubler for the tailpiece area.  The resulting assemblage of clamps looked like a piece of yard art!

Or maybe just a junkpile!

Once everything was solidly set up, I got out the cabinet scrapers and removed all the excess glue, then sanded everything lightly.  I trimmed the corner at the heel, and did a quick overall dimensional check.  Looks good so far.  Now if I could only figure out where I stored my coping saw…or my sabre saw…..  well, anyhow, tomorrow is another day.  More to come!