A good start would be...get you an eberlestock blue widow pack and some Kenetrek mountain extreme boots. You will need this to start getting into shape.
I know I look funny (dont really care) but I wear this stuff in the gym starting in march to get into shape. I live on that stair climbing machine!( the one with the rolling stairs) It has served me well. As i get more in shape I increase the weight in pack till I get to my capacity weight that I will use on my hunt. I also work legs twice a week, free squats, deadlifts, leg curls/extensions,calves. I keep things at a high rep scheme like 20-30 reps for more of an endurance type of lifting.
Its cool to borrow stuff if you can, but you will need to get those boots broken in and you will need your muscles and back to be in shape for carrying that pack over the miles you will walk.
The rest is as others have said...from there get lightest equipment you can afford, borrow or whatever...lol
Kinda flat here in Texas, so a mans gotta to do what a man has to do!!!
Good luck