Hm...the system is run by computer, so you'll need a computer program put into your car's computer system to run ABS. This will probably end up being very expensive...if it was me I'd learn how to use PMABS (poor man's ABS), in other words just get used to pulsing your brakes at the brink of locking up instead of trying to get an entire brake system.
You'd need to install teh abs exciter gears on all four wheels to make it work right, and get all the hardware hooked up to pulse the brakes... I'd stick with non-abs personally. If driven well, they stop MUCH faster than ABS.