I'm going against the grain here, but this is what I would do. I'd up the carbs to about 50/day, keep the spinning and workouts the way you like, be careful not to train to failure too often and cut back on your daily calorie intake slightly. You'll have the energy you want, your moods will get better, you'll feel better and you won't have to worry about the timing, or type of carbs so much.

You may not stay in ketosis as often, but you don't need to be to stay fat adapted. Give yourself a couple of weeks and see what happens.

Be ready, soon you'll hit another maintenance level and you'll need to make another adjustment. The lower your weight gets, the harder it becomes.