Which front end tech to use with Ruby on Rails?

We’re going to develop a startup with the backend in RoR and I’m wondering which front end tech will be more suitable for us. Here are some key points to consider:

• It will be a social network of vendors and customers, with profiles, products, orders, payments and gps integration
• We have no prior experience and have a short dev/learn time

Should it be a SPA? Which tech should we use? Ember, Angular, React? None?

Thanks in advance :D