For career switchers, FT programs generally are the better option. At some schools, PT students don't have access to the same career services support, on-campus recruiting, etc as the FT students, as well as not having as much time to focus on clubs and other extracurriculars that will help the switch (since PT students also typically have FT jobs).
With regard to financing, the FT student budget - which sets the maximum limit for financial aid including loans - includes an estimate for living expenses including rent, food, medical insurance, spending money, etc. So you could use student loans to pay these expenses.
GMAT Club Premium Membership - big benefits and savings