Why 8hr? For the entire day eat 5 times and 200 plus grams is very doable. I only have one scoop of whey, and sometimes a bar, but everything else is lean Protein or carbs and fat that also have protein (oats, pb, yogurt)
Intermittent fasting. I don't know if there are any real documented benefits but anecdotally fasting is pretty nice. I often feel very energized and clear headed while fasting.