http://www.therunzone.com/
^^^Go to this website. Ask the same questions to "Tinman" in the coaching section. He is a very knowledgeable running coach, who understands bike racing too. Probably find the perfect answer from him.
And it does sound like you are wanting to bite off a bit more than a full time student can chew, but heck maybe your ability to handle massive workloads is beyond the average.