Headed to the serger to play with more stitches, and before long I had that sweater off and started cutting. Nice piece of black silk scrap just fit the bottom. Added some new black and red buttons (some of the others had long gone anyway). A little bit of an improvement! Should get about 10 more years out of it! Maybe add a fabric broach at the top.
Cut, Serge, and Wear! About 30 minute job.