Those are all crap. Get some quality stuff from reputable manufacturers.

All those parts will end up being a headache more than anything else. If you are strapped for cash, just get the car running in great shape with a full tuneup and then save for some quality parts.

For a nice set of coilovers, expect to pay several hundred dollars plus the camber kits plus the alignment afterwards. My whole setup with springs instead of coilovers ran over $600, so expect to pay more than that with a quality coilover setup.

Look at DC sports lineup of headers and expect to pay around $250.

Pulleys are a waste of money and they distroy thrust bearings and alternators. A minimal HP gain will be observed but not worth the cost of repairing the damage they cause.

Those spark plug wires won't do anything. OEM NGK spark plug wires are the best. Period.

That catback will probably sound like complete shit and won't bolt up correctly. Expect to pay upwards of $500 for a quality piece from Apexi, Greddy, etc.

Strut bars don't do anything and ebay strut bars are even worse. Save your money.

Car modifications aren't cheap, so I recommend that you save your money (since you don't have much of it) and keep the car in good condition until you have money to shell out on quality parts.