stock parts

I'm looking for some used parts for my sedan. 4 x Spring seats fronts & rears 4 x Dust boots/shield 4 x retaining washers and top nuts Can I use washers and nuts from any hardware store or is it better to go with used stock parts? Does our stock set up come with spring seats for the top...

Everything is on a OBO basis, if i like the price it will be in the mail the following day A/C Compressor A/C cooler (with lines) Power steering Pump Power steering Resivor (with lines) Stock Crank Pulley Stock injectors (size unsure but they all work fine) Stock Fuel pump Stock flywheel I'll...