Chris – You can find bigger end platforms that may try this. Around the lower stop, although, WooCommerce would have the capacity to tackle this. Since you are making use of WordPress currently, you may want to consider using a WordPress LMS plugin like LearnDash in combination with WooCommerce. http://takemyexam50481.theideasblog.com/1979391/the-definitive-guide-to-do-my-online-course