I found a set of 8 LLY injectors pulled out of a motor that had bad HGs and it sat so long the bores rusted. Price is $250 USD for all 8, seems like a good deal even if they are only cores. Who is doing a good job of rebuilding LLY sticks these days, and what's a typical cost? I have one knocky injector and thinking about replacing them all with rebuilt ones, but not sure if just buying all new Bosch would be my best bet?? Any advice?