I'm done! Sorta....

   I got to the end of the warp, cut it off the loom, washed it, dried it in the dryer, measured it....

...and it is eighteen inches too short.
<Groan>
<Deep sigh>
  Fortunately, I didn't take the loom waste off the loom and clean it up when I was done, so there is yarn still through the heddles and reed. I have already measured out the new warp and just need to tie it to the existing warp, tie it on to the front bar, and weave the rest of it.

   I'm not going to estimate how long that will take, but it will not be anywhere near as long as before.