Two round trips to Florida should do it. Don't know what you are saying about your credit card, but seriously doubt that those double miles count towards status.
LAX-FLL is $401 on the 16th, also reasonable on the 17th.
LAX-MIA is just over $400 on the 30th and 31st.
SAN-MCO is $352 on the 17th, $391 on the 18th.