Do abs at the end of sessions, not before. Don't want to do inclines with nuked abs.

If you're no longer interested in bulking, you shouldn't do BB exercises at a rep range designed to bulk you up. Strength is about low reps.

You can just do the couple of lifts mentioned in Starting Strength at the same weight each session (no poundage progression) while eating a mild caloric deficit each day. Keep protein intake high. No milk. That's how I would go about it. You keep your strength, you do not bulk further, and you shed fat.