I like Soldier's advice, a lot.
But you can also look at it a different way. . .
Keep the 3 days a week of cardio/conditioning and drop lifting to 2 days a week. This is plenty of lifting (if intense) to maintain or build muscle/strength, especially on a caloric deficit. When you have cut your body fat down to desired levels, simply swap a conditioning day for another lifting day (2 cardio, 3 lifting). That way you'll utilize the extra conditioning you've built and can focus more on weight progression.