This is a recreation of my dorm in college a few years ago. I finally took the step to put a rollercoaster track throughout it. Good luck, have fun, and please let me know if there are any issues, I tried to cover all ground.
Use mongoose
1-4 Players
Use Ducain23's Mongoose Race Gametype (it's in my bookmarks as well)
24 checkpoints for 3 laps (8 per lap)