Charlie,
Congratulations on leaving on your school adventure. At college, you will be challenged to research and solve problems individually and in groups, as well as being tested against standards to prove your mastery of the subjects.
It's good that you've taken on this "bike storage" problem. Have you tried the phone application "Google"? If you launch this application, and type in the words "free standing bicycle storage" it'll give you some options to follow. Click on the "Shopping" tab.
Scroll down a few entries, and you'll find a nice free standing unit from Overstock.com for $66.49. That's the unit that I would recommend.
Good luck with the rest of your college career. PG