What are you going to base the SAR on? SAR being filed due to a suspicious odor? What if you have a cold? The amount doesn't even satisfy the threshold for customers. I suggest you monitor the activity for suspicious transaction.
Aquamarine,
On the new SAR, there is a reason for condition of funds. So yes, if the OP wanted to file the SAR for the smell of the money, condition of funds is completely appropriate. See 33b "Suspicion concerning the physical condition of funds" on the new FinCEN SAR.
Additionally, while the bank is required to file a SAR at the thresholds (and above), the bank can always file a SAR at its option if below the threshholds.