From all the research I've done on these kits, it seems really simple to install, and as RSM stated, it's just like changing a set of points but minus the condenser. From what I've read, you can even use your original coil!
My 73 Station Wagon came with a Crane Cams Fireball XR700 points eliminator kit. I haven't played with it since I swapped it out for Points, but I think my issue is due to a missing tab on the optical shutter wheel. Unfortunately it's about $50 to get a kit with ALL of the shutter wheels and not just the one I need. I can't bring myself to pay that much when I don't even know if the control module is any good. I won't play with it until I get some other bugs on the car figured out.