Re:Rotating calories and carbs
What you have proposed is fine, give it a go and find out if it works. Doesn't matter what someone says on a forum it's doing things for your self to see if it works that counts as everyone is different. There are no set macro's/ratios for everyone.
If wanting to time carbs just eat them at breakfast, pre and post workout. Steady supply of healthy fats, high protein and lots of fibrous veg. Largely depends on bodytype and how you handle nutrients to how you should eat though. The key to gaining muscle without fat is first of all over calories but then that has to be broken down into the correct nutrient choices/timings for your bodytype, your needs, your lifestyle, your training routine, your metabolism etc.