Higher reps and light to moderate weights will help to loose the weight because it is closer to aerobic or less anaerobic than heavy weights, your goal will be possible without cardio but it will take a lot longer and you will have to eat a lot less.
Why not a steady state jog for 30 mins first thing in the morn before your breakfast?
Do this 3 or 4 times a week along with 4 sessions of light to moderate lifting (60-90 mins) and you'll have a good training base to start with.
Just watch the cals and you'll be on your way