What's the best way to implement a woocommerce theme on top of an existing portal?

I have been tasked with migrating an existing fashion information portal to wordpress and I want to choose a nice starter theme to start off my work. The problem is that the information portal will be transformed into an e-commerce shop three months down the line. I have chosen woocommerce as my software of choice.

So should I choose a woocommerce theme to start with right now (even though there is no shop to be setup) or should I start with a twitter bootstrap base-theme and then integrate bits and pieces of woocommerce capabilities. Is the latter option even possible? Or will it simply not work?

Would really appreciate sound advice from this friendly, helpful community