I used IF earlier in the year to clean up some unnecessary weight gain, and was planning on continuing to use it to grow, but I ended up deciding that if I was truly honest with myself, IF appeals to me because it is easy, fun, and convenient, not because i feel it is optimal.
However, I do still enjoy being able to eat a large last meal of the day, so I'll typically eat a decent sized breakfast, then whey/poptart pre and post workout in the afternoon, gatorade/bcca's intra, then a decent dinner around 6. I save over 50% of my carbs and fats and an adequate amount of protein for a big last meal of the day, that often affords me the room in my macros for some treats like popcorn or ff frozen yogurt.
So I guess what I'd suggest is that you could possibly try easing into it by consuming a normal breakfast, then periworkout nutrition depending on what time of day you lift, and still be able to have a "feast" at night. As you get used to eating several times during the day, you may find that you want to add a "lunch" feeding, but you may very well find that you like the new approach, as I have