have you bought the springs yet?
because if you haven't, I say don't.
if you ask me, buying springs is the first mistake you could make.
your dampers, the stock ones, are in no way designed to be used with lowering springs.
if you put lowering springs on them, you will blow them. waaaay before their time.
so why waste that time, money and effort? for an inferior suspension as well.
better idea is to save up a bit. save up until you can afford a set of coilovers. coilovers
are springs and dampers combined that are designed to work together. it's a full
replacement of the stock springs/dampers.
after getting coilovers you are going to have camber problems in the back, so you'll
want to get a set of Ingalls adjustable lower rear camber and toe arms.
that should do you, coilovers and camber kit. it's a good idea to also put in a more
stout rear sway bar with some nice bushings.