I'm with everybody else here - I think having the ability to pivot would be worthwhile. With it angled and a little adjustment on your sidelink it can be used to crown a road.
I built my own 80' landscape rake, along with a set of gauge wheels (which will also fit my Woods boxblade) using the same tines and spacing as MadRef. They work just fine for football-sized and slightly larger rocks. In fact I just spent the last few days, making a couple of modifications to it - relocating the angle index plate, relocating the toplink attaching point, and adding a remote hydraulic cylinder to vary the angle. A couple of welds this morning and it will be done and ready to work.
I never did around to painting it and making it look all pretty ..... so I never posted any pictures of the completed unit. One of these days .....
Here's a link to the thread:
http://www.tractorbynet.com/forums/s...ad.php?t=57726