I would think your rock bucket could be modified to work. useing the float setting on the FEL. and attaching gauge tires to the sides to adjust height, you'd basicly built a push style rock picker that was shown. when it gets full just pick it up and dump it.
Thanks for the replys guys. Alot of great ideas. I tried this idea with pads or ski's bolted to the sides bucket. The problem is that with any type of buildup the tractor looses traction. Pushing also is not an option as the tractor has better traction pulling. Any sand building up has to be removed quickly either by conveyor or vibration thru a screen. One of the big problems is the sand on the beaches here is wind blown. Its not the "sharp" sand used in masonry or the construction industry. Looking at it under a microscope it has the appearance of out of round ball bearings. Really hard to get good traction even with no load. Thanks again