I'm happy to report back that I'm still alive.
I ended up taking a minibus down to Mong Kok then another one from Mong Kok to Wan Chai. University to Mong Kok was $12 and Mong Kok to Wan Chai was $10.
The destinations were all written in Chinese so I had to flag down the minibuses to ask them if they were headed to Wan Chai. The minibuses drove past the university every couple minutes at 4AM in the morning. It took about an hour to get to Wan Chai.