Need: sublet for July ($1300cap)

In need of a place for month of July, ideally for less than $1300

I am a medical student who will be doing an inpatient rotation that month, and so would like to avoid commuting from the city (where I currently live)

I am a quiet, clean, respectful non-smoker who will be keeping early hours

Additional option of housing swap for the month (for room in a lovely house in central Mission district location!)....