Red's ending play looks good and logical. The loser seems to be 7 ... 19-16?, with KingsRow recommending 29-25 draw. White's game goes downhill rather quickly from there.
Incidentally, KingsRow's 29-25 was played in C. Spruill - J. Priest, 1974 Florida Open from a Wagram: 9-13 24-20 11-15 22-17 13-22 25-11 8-15 23-19 15-24 28-19 4-8 27-23 5-9 29-25.