Hold onto your wallet when you price that Rascal machine!!!
I use a Landpride scraper/grader. $1200
http://www.landpride.com/products/dirtworking/grading-scrapers
Box blades are ok for moving dirt and piles of stuff,,,but the grader/scraper will rip up a road and put it back down smooth. The box blades are too short and don't smooth things down without a lot of jockying on the levers,,,since they are so short.
A scraper/grader must have adjustable teeth to rip up the hardpack. If you don't get to the bottom of the pothole,,,might as well stay in the house. You need to destroy the pothole clear down to the bottom,,or it will be back shortly. You also need a good punishment to put on your boys when they "peel out" in the driveway,,,,cause it's cool to do and they like the holes the tires make.
Then on days you want simple smoothing of the gravel,,pick up the teeth and drive up and down the road,,,,done.
You need weight on whatever you use. The landpride does not have (angle) adjustable scrapers,,,i wish it did,,,but it works great anyway. I just like to adjust stuff. You can adjust height of blades for aggressiveness and crowning. The scrapers are angled which helps crown and move gravel sideways.
My driveway is beautiful since the day I bought it. Works better if hard pack is damp when you tear it up. Not as dusty too!
Be aware this all makes snowplowing harder since the gravel will be looser because you are out there playing with the grader and unpacking the gravel,,,,,,,
I don't know about the rtv pulling these. I use a tractor,,,so i guess all above comments are worthless!