Senior guy in the class is 0001 and junior guy is 9999 based on last four of your social security number.
There are very few affordable options for hotels. We had a few guys at the Doubletree and Radisson. There is an extended stay hotel on Quebec for 800/month but we had one person's car broken into there..so they packed up and left. We also had a handful of people staying with family / friends in the area.
There not paying for lodging. Isn't that great.