well rebuilts just have the shiny new pistons and seals, i still plan on doing the sliders..i just didnt know where to look for them...but that answers that question thank you.
the left spindle bearing is no good...the rotor either has to be turned or replaced..so i might as well do both sides and be done with it....the thrust arm is definately dead... the only reason im buying the calipers is to just swap them out. same with the hub.
the brakelines yes, slightly firmer pedal feel..
the are all original parts...i dont see it as a waste of money or uneccesary.. i plan on keeping my car. i just see it as an investment...the parts are too cheap not to.