I've had single slope laser systems, dual slope laser systems and gps systems which were all automated. If you can get them set up right, they do great work in short time. Right now I am setting up a Trimble system on my CK35 skidsteer. Trimble and accugrade offer a single slope automated systems. With the box blade, the laser, the receiver, control box and all wiring/valves you would be looking at spending around 15k for everything. You can probably find most of the components you need used on ebay. Just got my box blade to my shop this weekend and need to do some modifications to it. I am hoping to get my system up and running this week.