I rotated at Harbor-UCLA two years ago and stayed in "the barricks." They are located within the medical complex and are essentially free for visiting students. There is also free parking. The person in charge of setting up your away rotation should be able to give you more info. Space is limited and is assigned on a "first come, first served" basis, so get the ball rolling. The barricks are somewhat primitive, but it is fun because it is so close and there are other visiting students staying there.