I need advice

ok so im new and i was hoppin you guys could help me out with somthing. I just got 1200 dolars and im not sure what to spend it on. My car has 195,000 miles on it so i dont want to mess with the enigine so much ( thats what the mazda is for) so do i
1. suspension and other handeling parts for the camry like sway bars eiback lowering spring blisten shcks and new tires

2. finsh off my sound system with another amp and two infinitry perfect kappa 12.ad subs and the huge load of dyna mat i would have to buy

3. buy a new home speaker system lookin at infinty alpha 50 towers with a harmon kardon hk3475 reciever ( my system right now is 2 towers from the early 70's with blown woofers and a sumaima reciever also from the early 70's that puts out 15 watts per channel