Are you talking about doing a whole foods version of the V-Diet while starting to IF?
In regards to the V-Diet, there is a formula in Shugart's V-Diet articles on T-Nation that calculate calories for both men and women (I think there's a seperate article for women).
I did the V-Diet then transitioned to IF and have had no problems at all. I have one cup of coffee in the AM and then two shots of espresso after my PM workout and I feel really good. I currently am trying to eat a more Paleo diet, but I'm not all that hung up on it at this point. I think the V-Diet can be credited for making the transition onto IF seem relatively easy compared to what I've read in some online nutritional logs.