Because I live in the middle of nowhere, I must order anything that is good. I'm going to try out Torque's RT700 fluid. They come in bottles that are about a 1/2 quart. Any idea how many I should be ordering to completely flush out the system?

That should be enough. I did my whole car with a can of ate blue that was 1/3 to 1/2 full and there was plenty left over